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Heart|Lab Grown|IGI

1.90ct G SI1 Heart Lab Grown Diamond

ID • G/SI1 • IGI LG512220502

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG512220502

Diamond specifications and retailer prices

From $359 USD
As of November 6, 2026
Save $1,373 USD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,732 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.9ct lab-grown heart diamond

This 1.9ct lab-grown heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512220502 or 512220502. Listed at 14 retailers as of November 5, 2026, with prices from $359 to $1,732, a $1,373 spread on the same certified stone. MOH London lists it at $1,732. 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

1.90
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle43.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220502
Dimensions8.91 × 7.43 × 5.13 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.91 mm7.43 mm1.90 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220502
Side View
Table 60.0%Crown 35.4°Girdle: MED-THKPavilion 43.5°Culet: NoneDepth 57.6%

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 6
Current: $1,732 USD|Low: $344 USD|High: $2,150 USD|Avg: $855 USD|-4.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 9$359 USD
Retailer 5$400 USD
Retailer 13$416 USD
Retailer 3$445 USD
Retailer 10$445 USD
Retailer 7$595 USD
Retailer 12$713 USD
Retailer 4$714 USD
Retailer 2$793 USD
Retailer 8$1,304 USD
Retailer 6$1,360 USD
Retailer 11$1,429 USD
MOH London$1,732 USD

44 data points across 13 retailers

14 retailers$359 USD to $1,732 USD

A
Cheapest Retailer
-
$359 USD
A
Retailer 2
-
$400 USD
View
Final sale: no returns
A
Retailer 3
-
$416 USD
View
Retailer 4
-
$445 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$445 USD
View
B+
Retailer 6
-
$595 USD
View
B+
Retailer 7
-
$713 USD
View
B+
Retailer 8
-
$714 USD
View
B+
Retailer 9
-
$793 USD
View
B
Retailer 10
-
$1,036 USD
View
B
Retailer 11
-
$1,304 USD
View
B
Retailer 12
-
$1,360 USD
View
B
Retailer 13
-
$1,429 USD
View
Most Expensive
B
MOH London
LG512220502 · Nov 5
$1,732 USD
£1,364 GBP
View
13 more retailers have this diamond
Prices start from $359 USDSave up to $1,373 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
1.90ct Heart
$359 USD