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Heart|Lab Grown|IGI

3.51ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG702503038

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG702503038

Diamond specifications and retailer prices

From $1,856 USD
As of November 2, 2026
Save $17,277 USD (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $19,133 USD at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 3.51ct lab-grown heart diamond

This 3.51ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG702503038 or 702503038. Listed at 23 retailers as of November 1, 2026, with prices from $1,856 to $19,133, a $17,277 spread on the same certified stone. Novita Diamonds lists it at $19,133. 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

3.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG702503038
Dimensions10.35 × 9.23 × 6.20 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.35 mm9.23 mm3.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG702503038
Side View
Table 62.0%Crown 38.3°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
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: Nov 2
Current: $19,133 USD|Low: $1,856 USD|High: $19,877 USD|Avg: $5,888 USD|-3.7%
Novita Diamonds
Retailer 2
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Retailer 19
November 2, 2026
Retailer 10$1,856 USD
Retailer 16$2,019 USD
Retailer 5$2,078 USD
Retailer 8$2,153 USD
Retailer 3$2,320 USD
Retailer 17$2,425 USD
Retailer 12$2,960 USD
Retailer 2$3,256 USD
Retailer 18$3,375 USD
Retailer 4$3,875 USD
Retailer 7$4,035 USD
Retailer 14$4,861 USD
Retailer 6$5,800 USD
Retailer 13$6,148 USD
Retailer 19$6,477 USD
Retailer 9$7,188 USD
Retailer 11$7,542 USD
Retailer 15$11,880 USD
Novita Diamonds$19,133 USD

39 data points across 19 retailers

23 retailers$1,856 USD to $19,133 USD

A
Cheapest Retailer
-
$1,856 USD
A
Retailer 2
-
$2,019 USD
View
A
Retailer 3
-
$2,078 USD
View
Final sale: no returns
A
Retailer 4
-
$2,153 USD
View
A
Retailer 5
-
$2,320 USD
View
A
Retailer 6
-
$2,425 USD
View
Retailer 7
-
$2,484 USD
View
Price last confirmed 22 days ago
A
Retailer 8
-
$2,960 USD
£2,330 GBP
View
A
Retailer 9
-
$3,256 USD
View
A
Retailer 10
-
$3,375 USD
View
A
Retailer 11
-
$3,875 USD
View
Retailer 12
-
$3,985 USD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
$4,035 USD
View
B+
Retailer 14
-
$4,861 USD
A$7,478 AUD
View
B+
Retailer 15
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$5,283 USD
View
B+
Retailer 16
-
$5,800 USD
View
B+
Retailer 17
-
$6,148 USD
£4,841 GBP
View
B+
Retailer 18
-
$6,477 USD
View
B+
Retailer 19
-
$7,188 USD
SGD 9,714 SGD
View
B+
Retailer 20
-
$7,542 USD
View
B+
Retailer 21
-
$7,707 USD
View
B
Retailer 22
-
$11,880 USD
View
Most Expensive
B
Novita Diamonds
cert_702503038 · Nov 1
$19,133 USD
A$29,436 AUD
View
22 more retailers have this diamond
Prices start from $1,856 USDSave up to $17,277 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
3.51ct Heart
$1,856 USD