Heart|Lab Grown|IGI

3.64ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG821638865

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG821638865

Diamond specifications and retailer prices

From $2,792 USD
As of October 27, 2026
Save $16,418 USD (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $19,210 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.64ct lab-grown heart diamond

This 3.64ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821638865 or 821638865. Listed at 10 retailers as of October 27, 2026, with prices from $2,792 to $19,210, a $16,418 spread on the same certified stone. Do Amore Diamonds lists it at $19,210. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.64
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821638865
Dimensions8.91 × 10.47 × 6.47 mm
L/W Ratio1.18
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.91 mm10.47 mm3.64 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821638865
Side View
Table 59.0%Crown 36.5°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $19,210 USD|Low: $2,792 USD|High: $21,490 USD|Avg: $9,363 USD|-10.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 5$2,792 USD
Retailer 10$3,037 USD
Retailer 8$3,400 USD
Retailer 11$3,468 USD
Retailer 9$4,466 USD
Retailer 7$4,653 USD
Retailer 6$5,037 USD
Retailer 3$7,006 USD
Retailer 2$9,108 USD
Retailer 4$16,202 USD
Retailer 12$17,450 USD
Do Amore Diamonds$19,210 USD

19 data points across 12 retailers

10 retailers$2,792 USD to $19,210 USD

A+
Cheapest Retailer
-
$2,792 USD
A
Retailer 2
-
$3,037 USD
View
A
Retailer 3
-
$3,400 USD
View
A
Retailer 4
-
$3,468 USD
View
A
Retailer 5
-
$4,466 USD
View
B+
Retailer 6
-
$4,653 USD
View
B+
Retailer 7
-
$5,037 USD
View
B
Retailer 8
-
$9,108 USD
£7,172 GBP
View
B
Retailer 9
-
$17,450 USD
View
Most Expensive
B
Do Amore Diamonds
27-E718634AA · Oct 29
$19,210 USD
View
9 more retailers have this diamond
Prices start from $2,792 USDSave up to $16,418 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A+
3.64ct Heart
$2,792 USD