CaratHunter
Plans
Heart|Lab Grown|IGI

1.02ct I SI1 Heart Lab Grown Diamond

ID • I/SI1 • IGI LG436045943

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG436045943

Diamond specifications and retailer prices

From $620 USD
As of November 6, 2026
Save $3,355 USD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,975 USD at MOH London · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436045943 or 436045943. Listed at 10 retailers as of November 5, 2026, with prices from $620 to $3,975, a $3,355 spread on the same certified stone. MOH London lists it at $3,975. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.7°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045943
Dimensions7.17 × 5.90 × 4.27 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizePointed
Top View
7.17 mm5.90 mm1.02 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045943
Side View
Table 62.0%Crown 32.7°Girdle: STK-THKPavilion 40°Culet: NoneDepth 59.6%

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 6
Current: $3,975 USD|Low: $620 USD|High: $4,035 USD|Avg: $1,842 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 2$620 USD
Retailer 3$1,013 USD
Retailer 4$1,175 USD
Retailer 6$1,350 USD
Retailer 8$1,688 USD
Retailer 5$1,877 USD
Retailer 7$2,456 USD
MOH London$3,975 USD

15 data points across 8 retailers

10 retailers$620 USD to $3,975 USD

A
Cheapest Retailer
-
$620 USD
A
Retailer 2
-
$1,013 USD
View
B+
Retailer 3
-
$1,102 USD
View
B+
Retailer 4
-
$1,175 USD
View
Retailer 5
-
$1,175 USD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,350 USD
View
B
Retailer 7
-
$1,877 USD
View
B
Retailer 8
-
$2,203 USD
View
B
Retailer 9
-
$2,456 USD
View
Most Expensive
B
MOH London
LG436045943 · Nov 5
$3,975 USD
£3,130 GBP
View
9 more retailers have this diamond
Prices start from $620 USDSave up to $3,355 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
$620 USD