Heart|Lab Grown|IGI

1.02ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG840612237

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840612237

Diamond specifications and retailer prices

From €183 EUR
HK$1,600 HKD
As of October 30, 2026
Save €562 EUR (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €746 EUR at MOH London · As of October 26, 2026
View at MOH London

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 LG840612237 or 840612237. Listed at 10 retailers as of October 26, 2026, with prices from €183 to €746, a €562 spread on the same certified stone. MOH London lists it at €746. 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
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.6°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840612237
Dimensions6.88 × 6.43 × 3.95 mm
L/W Ratio1.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.88 mm6.43 mm1.02 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG840612237
Side View
Table 60.0%Crown 37.6°Girdle: MED-STKPavilion 38°Culet: NoneDepth 57.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €746 EUR|Low: €143 EUR|High: €754 EUR|Avg: €338 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 3€143 EUR
Retailer 8€183 EUR
Retailer 9€192 EUR
Retailer 2€271 EUR
Retailer 6€272 EUR
Retailer 10€296 EUR
Retailer 11€298 EUR
Retailer 7€342 EUR
Retailer 5€401 EUR
Retailer 4€434 EUR
MOH London€746 EUR

21 data points across 11 retailers

10 retailers€183 EUR to €746 EUR

A
Cheapest Retailer
-
€183 EUR
HK$1,600 HKD
Retailer 2
-
€192 EUR
£169 GBP
View
Price last confirmed 15 days ago
A
Retailer 3
-
€271 EUR
View
B+
Retailer 4
-
€272 EUR
£240 GBP
View
B+
Retailer 5
-
€296 EUR
$331 USD
View
B+
Retailer 6
-
€298 EUR
$333 USD
View
B+
Retailer 7
-
€342 EUR
£301 GBP
View
B+
Retailer 8
-
€401 EUR
$448 USD
View
B+
Retailer 9
-
€434 EUR
SGD 655 SGD
View
Most Expensive
B
MOH London
LG840612237 · Oct 26
€746 EUR
£656 GBP
View
9 more retailers have this diamond
Prices start from €183 EURSave up to €562 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
€183 EUR