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Marquise|Lab Grown|IGI

1.00ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG766628129

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG766628129

Diamond specifications and retailer prices

From $297 USD
As of November 6, 2026
Save $565 USD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $862 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1ct lab-grown marquise diamond

This 1ct 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 LG766628129 or 766628129. Listed at 7 retailers as of November 2, 2026, with prices from $297 to $862, a $565 spread on the same certified stone. MOH London lists it at $862. 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

1.00
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766628129
Dimensions10.63 × 5.14 × 3.22 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
10.63 mm5.14 mm1.00 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766628129
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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: $862 USD|Low: $297 USD|High: $872 USD|Avg: $442 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$297 USD
Retailer 2$316 USD
Retailer 5$339 USD
Retailer 3$350 USD
Retailer 4$503 USD
MOH London$862 USD

32 data points across 6 retailers

7 retailers$297 USD to $862 USD

A
Cheapest Retailer
-
$297 USD
A
Retailer 2
-
$316 USD
View
A
Retailer 3
-
$339 USD
View
A
Retailer 4
-
$350 USD
View
B+
Retailer 5
-
$503 USD
View
B
Retailer 6
-
$648 USD
View
Most Expensive
B
MOH London
LG766628129 · Nov 2
$862 USD
£679 GBP
View
6 more retailers have this diamond
Prices start from $297 USDSave up to $565 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
1.00ct Marquise
$297 USD