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Heart|Lab Grown|IGI

1.09ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG849651126

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG849651126

Diamond specifications and retailer prices

From $156 USD
As of November 2, 2026
Save $751 USD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $907 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG849651126 or 849651126. Listed at 10 retailers as of November 2, 2026, with prices from $156 to $907, a $751 spread on the same certified stone. MOH London lists it at $907. 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

1.09
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849651126
Dimensions7.15 × 6.49 × 3.97 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.15 mm6.49 mm1.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849651126
Side View
Table 60.0%Crown 32.2°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 55.5%

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 2
Current: $907 USD|Low: $156 USD|High: $907 USD|Avg: $439 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4$156 USD
Retailer 5$251 USD
Retailer 8$262 USD
Retailer 3$334 USD
Retailer 7$340 USD
Retailer 9$342 USD
Retailer 6$368 USD
Retailer 2$659 USD
Retailer 10$679 USD
MOH London$907 USD

3 data points across 10 retailers

10 retailers$156 USD to $907 USD

A
Cheapest Retailer
-
$156 USD
A
Retailer 2
-
$251 USD
£198 GBP
View
B+
Retailer 3
-
$262 USD
View
A
Retailer 4
-
$334 USD
€318 EUR
View
A
Retailer 5
-
$340 USD
£268 GBP
View
A
Retailer 6
-
$342 USD
View
A
Retailer 7
-
$368 USD
£290 GBP
View
B
Retailer 8
-
$659 USD
View
B+
Retailer 9
-
$679 USD
View
Most Expensive
B
MOH London
LG849651126 · Nov 2
$907 USD
£714 GBP
View
9 more retailers have this diamond
Prices start from $156 USDSave up to $751 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
1.09ct Heart
$156 USD