Heart|Lab Grown|IGI

3.21ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804660159

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804660159

Diamond specifications and retailer prices

From $2,127 USD
As of October 30, 2026
Save $12,913 USD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,040 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.21ct lab-grown heart diamond

This 3.21ct 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 LG804660159 or 804660159. Listed at 12 retailers as of October 30, 2026, with prices from $2,127 to $15,040, a $12,913 spread on the same certified stone. Do Amore Diamonds lists it at $15,040. 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

3.21
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660159
Dimensions9.96 × 8.93 × 6.17 mm
L/W Ratio1.12
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
9.96 mm8.93 mm3.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660159
Side View
Table 61.0%Crown 36.6°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $15,040 USD|Low: $2,127 USD|High: $17,480 USD|Avg: $6,516 USD|-14.0%
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
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 11$2,127 USD
Retailer 15$2,378 USD
Retailer 8$2,502 USD
Retailer 9$2,635 USD
Retailer 10$2,759 USD
Retailer 4$2,846 USD
Retailer 2$3,743 USD
Retailer 13$3,962 USD
Retailer 14$3,975 USD
Retailer 5$5,784 USD
Retailer 12$7,535 USD
Retailer 6$9,528 USD
Retailer 7$12,692 USD
Retailer 3$14,220 USD
Do Amore Diamonds$15,040 USD

29 data points across 15 retailers

12 retailers$2,127 USD to $15,040 USD

A
Cheapest Retailer
-
$2,127 USD
A
Retailer 2
-
$2,378 USD
View
A
Retailer 3
-
$2,502 USD
View
A
Retailer 4
-
$2,635 USD
View
A
Retailer 5
-
$2,759 USD
View
A
Retailer 6
-
$2,846 USD
View
Final sale: no returns
A
Retailer 7
-
$3,743 USD
View
B+
Retailer 8
-
$3,962 USD
View
A
Retailer 9
-
$3,975 USD
View
B+
Retailer 10
-
$7,535 USD
£5,933 GBP
View
B
Retailer 11
-
$14,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-45FF374D3 · Oct 31
$15,040 USD
View
11 more retailers have this diamond
Prices start from $2,127 USDSave up to $12,913 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
3.21ct Heart
$2,127 USD