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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 $432 AUD
As of November 6, 2026
Save $823 AUD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,255 AUD 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 $432 to $1,255, a $823 spread on the same certified stone. MOH London lists it at $1,255. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,255 AUD|Low: $432 AUD|High: $1,270 AUD|Avg: $644 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 6$432 AUD
Retailer 2$460 AUD
Retailer 5$493 AUD
Retailer 3$509 AUD
Retailer 4$732 AUD
MOH London$1,255 AUD

33 data points across 6 retailers

7 retailers$432 AUD to $1,255 AUD

A
Cheapest Retailer
-
$432 AUD
A
Retailer 2
-
$460 AUD
View
A
Retailer 3
-
$493 AUD
View
A
Retailer 4
-
$509 AUD
View
B+
Retailer 5
-
$732 AUD
View
B
Retailer 6
-
$943 AUD
View
Most Expensive
B
MOH London
LG766628129 · Nov 2
$1,255 AUD
£679 GBP
View
6 more retailers have this diamond
Prices start from $432 AUDSave up to $823 AUD

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
$432 AUD