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Grandparent Test

Establish a biological link through a grandparent when the alleged parent cannot be tested. We review every case personally and contact you before any payment is collected.

Begin your DNA testing process

All details are confidential. Nothing is charged today.

1 Your contact details

You are opening this case. You will receive the case number and portal link.

If a doctor's office, funeral home, law office or another business gave you a card or a code, enter it here. Leave it blank if nobody referred you.

2 Test type

You arrived from the Grandparent Test page. Need a different test? See all tests

Grandparent Test
Confirmed by our team during personal review.
Personal testing is not admissible in court, and a personal collection cannot be upgraded afterwards. If there is any chance you will need this in court, choose Legal. If you are unsure, call us before you book — there are options we can talk through with you.
3 Who is being tested

Each person needs their full name and the city where their sample will be collected. They do not all have to be in the same place.

Both grandparents together is the strong version of this test, and the second grandparent is charged as an additional participant ($199). When the alleged father's mother and father are both tested, the laboratory can reconstruct most of his DNA profile and the result approaches the strength of a direct paternity test. One grandparent alone gives a probability, and sometimes an inconclusive one.
4 Preferred appointment

Optional. We schedule each participant individually and confirm by email and text.

5 Consent and authorization

Required by law before we can process genetic samples.

Every adult being tested consents separately. Each adult signs their own consent at collection, on the laboratory's form. During our review we confirm that every adult is willing to take part — which means you find out early if someone will not, before you have paid anything.
Please complete the three consent confirmations above to submit.

By submitting, you agree that Divine DNA may email you about your case and, occasionally, about our own services. You can stop the occasional emails at any time. The other people on your case are never emailed for that purpose.

Submitting a request does not create a testing agreement and does not charge you. Our team reviews every case and contacts you before any payment is collected.

A grandmother and grandfather with their granddaughter
Illustrative photograph
What this test is

A grandparent test compares the DNA profile of a child with that of one or both alleged grandparents to estimate whether the child is descended from their family line.

It is used when the alleged parent cannot be tested — most often because he has died, cannot be located, or will not take part. Because a grandparent shares about a quarter of a grandchild's DNA, the laboratory reports a likelihood ratio rather than the near-certainty a direct parentage test gives.

The number of people tested changes the answer you get. With both of the alleged father's parents, the laboratory can reconstruct most of his profile and the result becomes close to definitive. With one grandparent, and especially without the child's mother, the result can be genuinely inconclusive. Tell us who is available on this form and we will tell you honestly what the test can and cannot settle.

Function and purpose
  • The alleged father or mother has died, cannot be found, or will not test
  • Estate, inheritance and probate matters
  • Social Security and survivor benefit claims
  • Establishing a family relationship for support or custody proceedings
  • Private peace-of-mind answers for the family
If the alleged parent can be tested, test them instead. A direct paternity or maternity test costs less and answers the question outright. We would rather tell you that now than take payment for the harder test. If you are not sure, call us before you submit.
Immigration cases work differently. Immigration DNA testing follows a separate process set by the U.S. Department of State and must be arranged directly by the petitioner through an AABB-accredited laboratory. Call us and we will walk you through it.
Industry standards
  • Results are reported as a combined grandparentage index and a likelihood of relationship, not as a single 99.99% figure.
  • Testing both alleged grandparents together produces a far stronger result than testing one.
  • Including the child's mother strengthens the result again by letting the laboratory subtract her contribution.
  • Legal (chain-of-custody) tests require photo identification, witnessed collection and tamper-evident packaging.
  • Testing is performed by an AABB-accredited laboratory, accredited for Relationship Testing Activities, using dual-technician review.
  • Standard turnaround is 2 to 3 business days after the final sample arrives at the laboratory.