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Marquise|Lab Grown|IGI

0.51ct I SI1 Marquise Lab Grown Diamond

VG • I/SI1 • IGI LG440010794

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG440010794

Diamond specifications and retailer prices

From $350 SGD
$274 USD
As of November 2, 2026
Save $1,402 SGD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,753 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG440010794 or 440010794. Listed at 10 retailers as of October 29, 2026, with prices from $350 to $1,753, a $1,402 spread on the same certified stone. MOH London lists it at $1,753. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle30.7°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440010794
Dimensions7.78 × 4.31 × 2.68 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.78 mm4.31 mm0.51 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG440010794
Side View
Table 61.0%Crown 30.7°Girdle: THN-STKPavilion 42.6°Culet: NoneDepth 62.2%

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 2
Current: $1,753 SGD|Low: $336 SGD|High: $1,766 SGD|Avg: $806 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7$350 SGD
Retailer 11$407 SGD
Retailer 2$409 SGD
Retailer 8$435 SGD
Retailer 12$435 SGD
Retailer 3$639 SGD
Retailer 10$721 SGD
Retailer 5$808 SGD
Retailer 4$886 SGD
Retailer 6$1,336 SGD
Retailer 9$1,399 SGD
MOH London$1,753 SGD

20 data points across 12 retailers

10 retailers$350 SGD to $1,753 SGD

A
Cheapest Retailer
-
$350 SGD
$274 USD
B+
Retailer 2
-
$407 SGD
$318 USD
View
B+
Retailer 3
-
$409 SGD
$320 USD
View
Retailer 4
-
$435 SGD
$340 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$435 SGD
$340 USD
View
B
Retailer 6
-
$721 SGD
$564 USD
View
Retailer 7
-
$808 SGD
€602 EUR
View
Price last confirmed 8 days ago
B
Retailer 8
-
$1,336 SGD
$1,045 USD
View
B
Retailer 9
-
$1,399 SGD
$1,094 USD
View
Most Expensive
B
MOH London
LG440010794 · Oct 29
$1,753 SGD
£1,079 GBP
View
9 more retailers have this diamond
Prices start from $350 SGDSave up to $1,402 SGD

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
0.51ct Marquise
$350 SGD