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Marquise|Natural|GIA

0.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2566118494

Certificate GIA 2566118494

Diamond specifications and retailer prices

From $706 SGD
As of November 6, 2026
Save $1,943 SGD (73%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,145 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566118494. Listed at 13 retailers as of November 5, 2026, with a 275% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566118494
Dimensions8.24 × 4.07 × 2.52 mm
L/W Ratio2.02
Culet sizeNone
Top View
8.24 mm4.07 mm0.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566118494
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 62.0%

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: $3,145 SGD|Low: $706 SGD|High: $3,145 SGD|Avg: $1,354 SGD
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
November 6, 2026
Retailer 2$706 SGD
Retailer 5$884 SGD
Retailer 6$1,238 SGD
Retailer 8$1,312 SGD
Retailer 3$1,584 SGD
Retailer 11$1,716 SGD
Retailer 13$1,784 SGD
Retailer 12$1,858 SGD
Retailer 4$1,980 SGD
Retailer 9$2,107 SGD
Retailer 10$2,145 SGD
Retailer 7$2,649 SGD
MOH London$3,145 SGD

42 data points across 13 retailers

13 retailers$706 SGD to $2,649 SGD

A
Cheapest Retailer
-
$706 SGD
Retailer 2
-
$884 SGD
View
Price last confirmed 10 days ago
B+
Retailer 3
-
$1,238 SGD
View
B+
Retailer 4
-
$1,312 SGD
View
B
Retailer 5
-
$1,584 SGD
View
Final sale: no returns
B
Retailer 6
-
$1,716 SGD
View
B
Retailer 7
-
$1,784 SGD
View
B
Retailer 8
-
$1,858 SGD
View
B
Retailer 9
-
$1,980 SGD
View
B
Retailer 10
-
$2,107 SGD
View
B
Retailer 11
-
$2,145 SGD
View
C
Retailer 12
-
$2,649 SGD
View
Most Expensive
MOH London
369E450DD · Nov 2
$3,145 SGD
£1,932 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $706 SGDSave up to $1,943 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
$706 SGD