Heart|Lab Grown|IGI

3.51ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG851699527

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG851699527

Diamond specifications and retailer prices

From $538 USD
As of October 30, 2026
Save $1,628 USD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,166 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851699527 or 851699527. Listed at 13 retailers as of October 30, 2026, with prices from $538 to $2,166, a $1,628 spread on the same certified stone. Taylor and Hart lists it at $2,166. 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
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851699527
Dimensions9.25 × 10.52 × 6.26 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.25 mm10.52 mm3.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851699527
Side View
Table 54.0%Crown 34.5°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 59.5%

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: Oct 30
Current: $667 USD|Low: $538 USD|High: $2,166 USD|Avg: $1,263 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
November 1, 2026
Retailer 2$538 USD
Retailer 3$602 USD
Retailer 1$667 USD
Retailer 11$763 USD
Retailer 8$800 USD
Retailer 12$1,031 USD
Retailer 6$1,039 USD
Retailer 9$1,040 USD
Retailer 7$1,569 USD
Retailer 5$1,755 USD
Retailer 4$2,111 USD
Retailer 10$2,148 USD
Taylor and Hart$2,166 USD

3 data points across 13 retailers

13 retailers$538 USD to $2,166 USD

A
Cheapest Retailer
-
$538 USD
A
Retailer 2
-
$602 USD
View
Final sale: no returns
A
Retailer 3
-
$667 USD
View
A
Retailer 4
-
$763 USD
£601 GBP
View
A
Retailer 5
-
$800 USD
View
B+
Retailer 6
-
$1,031 USD
View
A
Retailer 7
-
$1,039 USD
£818 GBP
View
A
Retailer 8
-
$1,040 USD
View
B+
Retailer 9
-
$1,569 USD
View
B+
Retailer 10
-
$1,755 USD
View
B+
Retailer 11
-
$2,111 USD
SGD 2,853 SGD
View
B+
Retailer 12
-
$2,148 USD
View
Most Expensive
B+
Taylor and Hart
IFX4EX9 · Oct 31
$2,166 USD
View
12 more retailers have this diamond
Prices start from $538 USDSave up to $1,628 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
$538 USD