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Heart|Lab Grown|IGI

1.02ct G SI1 Heart Lab Grown Diamond

ID • G/SI1 • IGI LG770653157

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG770653157

Diamond specifications and retailer prices

From $295 USD
As of November 1, 2026
Save $599 USD (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $894 USD at MOH London · As of November 2, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770653157 or 770653157. Listed at 7 retailers as of November 1, 2026, with prices from $295 to $894, a $599 spread on the same certified stone. MOH London lists it at $894. 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
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770653157
Dimensions6.45 × 6.78 × 3.83 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.45 mm6.78 mm1.02 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG770653157
Side View
Table 67.0%Crown 34.5°Girdle: THK-VTKPavilion 37.2°Culet: NoneDepth 56.5%

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: Nov 1
Current: $894 USD|Low: $295 USD|High: $906 USD|Avg: $478 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 7$295 USD
Retailer 2$331 USD
Retailer 4$348 USD
Retailer 3$363 USD
Retailer 5$435 USD
Retailer 6$670 USD
MOH London$894 USD

37 data points across 7 retailers

7 retailers$295 USD to $894 USD

A
Cheapest Retailer
-
$295 USD
A
Retailer 2
-
$331 USD
View
A
Retailer 3
-
$348 USD
View
A
Retailer 4
-
$363 USD
View
B+
Retailer 5
-
$435 USD
View
B
Retailer 6
-
$670 USD
View
Most Expensive
B
MOH London
LG770653157 · Nov 2
$894 USD
£704 GBP
View
6 more retailers have this diamond
Prices start from $295 USDSave up to $599 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
1.02ct Heart
$295 USD