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Marquise|Lab Grown|IGI

1.03ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG766647276

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG766647276

Diamond specifications and retailer prices

From $306 USD
As of November 6, 2026
Save $531 USD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $837 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise 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 LG766647276 or 766647276. Listed at 7 retailers as of November 4, 2026, with prices from $306 to $837, a $531 spread on the same certified stone. MOH London lists it at $837. 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

1.03
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766647276
Dimensions10.79 × 5.20 × 3.30 mm
L/W Ratio2.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.79 mm5.20 mm1.03 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766647276
Side View
Table 58.0%Crown 33.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.5%

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 6
Current: $837 USD|Low: $295 USD|High: $848 USD|Avg: $436 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$306 USD
Retailer 7$309 USD
Retailer 5$333 USD
Retailer 3$340 USD
Retailer 6$425 USD
Retailer 4$490 USD
MOH London$837 USD

43 data points across 7 retailers

7 retailers$306 USD to $837 USD

A
Cheapest Retailer
-
$306 USD
A
Retailer 2
-
$309 USD
View
A
Retailer 3
-
$333 USD
View
A
Retailer 4
-
$340 USD
View
B+
Retailer 5
-
$425 USD
View
B+
Retailer 6
-
$490 USD
View
Most Expensive
B
MOH London
LG766647276 · Nov 4
$837 USD
£659 GBP
View
6 more retailers have this diamond
Prices start from $306 USDSave up to $531 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
1.03ct Marquise
$306 USD