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Marquise|Lab Grown|IGI

0.50ct I SI1 Marquise Lab Grown Diamond

ID • I/SI1 • IGI LG436047412

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436047412

Diamond specifications and retailer prices

From $345 SGD
$270 USD
As of October 30, 2026
Save $1,368 SGD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,713 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436047412 or 436047412. Listed at 11 retailers as of October 30, 2026, with prices from $345 to $1,713, a $1,368 spread on the same certified stone. MOH London lists it at $1,713. 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

0.50
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.2°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436047412
Dimensions7.74 × 4.15 × 2.62 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.74 mm4.15 mm0.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436047412
Side View
Table 56.0%Crown 34.2°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 63.1%

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: Oct 30
Current: $1,713 SGD|Low: $331 SGD|High: $1,734 SGD|Avg: $827 SGD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 8$345 SGD
Retailer 3$385 SGD
Retailer 13$400 SGD
Retailer 10$427 SGD
Retailer 14$427 SGD
Retailer 9$447 SGD
Retailer 4$633 SGD
Retailer 12$710 SGD
Retailer 2$797 SGD
Retailer 5$876 SGD
Retailer 7$1,313 SGD
Retailer 11$1,374 SGD
MOH London$1,713 SGD
Retailer 6$1,718 SGD

21 data points across 14 retailers

11 retailers$345 SGD to $1,713 SGD

A
Cheapest Retailer
-
$345 SGD
$270 USD
A
Retailer 2
-
$385 SGD
$301 USD
View
Final sale: no returns
B+
Retailer 3
-
$400 SGD
$313 USD
View
B+
Retailer 4
-
$427 SGD
$334 USD
View
Retailer 5
-
$427 SGD
$334 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$447 SGD
$350 USD
View
B
Retailer 7
-
$710 SGD
$555 USD
View
Retailer 8
-
$797 SGD
€594 EUR
View
Price last confirmed 7 days ago
B
Retailer 9
-
$1,313 SGD
$1,027 USD
View
B
Retailer 10
-
$1,374 SGD
$1,075 USD
View
Most Expensive
B
MOH London
LG436047412 · Nov 1
$1,713 SGD
£1,055 GBP
View
10 more retailers have this diamond
Prices start from $345 SGDSave up to $1,368 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
0.50ct Marquise
$345 SGD