Heart|Lab Grown|IGI

1.02ct D SI1 Heart Lab Grown Diamond

EX • D/SI1 • IGI LG837682699

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG837682699

Diamond specifications and retailer prices

From €161 EUR
$180 USD
As of October 30, 2026
Save €430 EUR (73%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €591 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.02ct lab-grown heart diamond

This 1.02ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG837682699 or 837682699. Listed at 3 retailers as of October 30, 2026, with prices from €161 to €591, a €430 spread on the same certified stone. Brilliant Earth lists it at €591. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.02
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837682699
Dimensions6.07 × 7.08 × 4.12 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.07 mm7.08 mm1.02 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837682699
Side View
Table 62.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 58.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €591 EUR|Low: €161 EUR|High: €949 EUR|Avg: €557 EUR|-37.7%
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3€161 EUR
Retailer 2€327 EUR
Brilliant Earth€591 EUR

34 data points across 3 retailers

3 retailers€161 EUR to €591 EUR

A
Cheapest Retailer
-
€161 EUR
$180 USD
Final sale: no returns
B+
Retailer 2
-
€327 EUR
£287 GBP
View
Most Expensive
B
Brilliant Earth
21485358A · Oct 31
€591 EUR
$660 USD
View
2 more retailers have this diamond
Prices start from €161 EURSave up to €430 EUR

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
1.02ct Heart
€161 EUR