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Heart|Lab Grown|IGI

3.51ct D VVS1 Heart Lab Grown Diamond

ID • D/VVS1 • IGI LG778675137

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG778675137

Diamond specifications and retailer prices

From $1,756 USD
As of November 1, 2026
Save $3,205 USD (65%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,961 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG778675137 or 778675137. Listed at 6 retailers as of October 31, 2026, with prices from $1,756 to $4,961, a $3,205 spread on the same certified stone. Taylor and Hart lists it at $4,961. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778675137
Dimensions9.33 × 10.64 × 5.97 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.33 mm10.64 mm3.51 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778675137
Side View
Table 59.0%Crown 38°Girdle: STK-THKPavilion 37.2°Culet: NoneDepth 56.1%

Caratlytics Score

How it works →
A
Excellent
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: Nov 1
Current: $4,547 USD|Low: $1,704 USD|High: $5,053 USD|Avg: $3,028 USD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Taylor and Hart
November 1, 2026
Retailer 3$1,756 USD
Retailer 2$2,037 USD
Retailer 5$2,244 USD
Retailer 4$2,644 USD
Retailer 1$4,547 USD
Taylor and Hart$4,961 USD

42 data points across 6 retailers

6 retailers$1,756 USD to $4,961 USD

A
Cheapest Retailer
-
$1,756 USD
B+
Retailer 2
-
$2,037 USD
£1,604 GBP
View
B+
Retailer 3
-
$2,244 USD
View
B+
Retailer 4
-
$2,644 USD
View
B
Retailer 5
-
$4,547 USD
£3,580 GBP
View
Most Expensive
B
Taylor and Hart
HGHQXFF · Oct 31
$4,961 USD
View
5 more retailers have this diamond
Prices start from $1,756 USDSave up to $3,205 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
$1,756 USD