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Marquise|Natural|GIA

2.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1555451099

Certificate GIA 1555451099

Diamond specifications and retailer prices

From $36,275 SGD
$28,375 USD
As of November 1, 2026
Save $28,637 SGD (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $64,912 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 2.5ct natural marquise diamond

This 2.5ct natural marquise sits in the two to three 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 1555451099. Listed at 16 retailers as of November 1, 2026, with prices from $36,275 to $64,912, a $28,637 spread on the same certified stone. MOH London lists it at $64,912. 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

2.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555451099
Dimensions13.38 × 7.02 × 4.35 mm
L/W Ratio1.91
Culet sizeNone
Top View
13.38 mm7.02 mm2.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555451099
Side View
Table 61.0%Crown 39.7°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $64,912 SGD|Low: $36,108 SGD|High: $64,912 SGD|Avg: $43,525 SGD|+3.0%
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 8$36,552 SGD
Retailer 15$37,618 SGD
Retailer 3$37,841 SGD
Retailer 7$39,876 SGD
Retailer 6$40,208 SGD
Retailer 13$40,372 SGD
Retailer 10$41,861 SGD
Retailer 5$41,870 SGD
Retailer 16$43,294 SGD
Retailer 2$44,521 SGD
Retailer 4$44,955 SGD
Retailer 11$45,027 SGD
Retailer 14$46,759 SGD
Retailer 9$48,730 SGD
Retailer 12$57,473 SGD
MOH London$64,912 SGD

17 data points across 16 retailers

16 retailers$36,275 SGD to $64,912 SGD

B+
Cheapest Retailer
-
$36,275 SGD
$28,375 USD
B+
Retailer 2
-
$37,618 SGD
$29,426 USD
View
B+
Retailer 3
-
$37,841 SGD
$29,600 USD
View
Retailer 4
-
$39,876 SGD
$31,192 USD
View
Price last confirmed 17 days ago
Retailer 5
-
$40,208 SGD
$31,452 USD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$40,372 SGD
$31,580 USD
View
B+
Retailer 7
-
$41,861 SGD
£25,783 GBP
View
Retailer 8
-
$41,870 SGD
$32,752 USD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
$43,294 SGD
$33,866 USD
View
B+
Retailer 10
-
$44,521 SGD
£27,422 GBP
View
B
Retailer 11
-
$44,955 SGD
$35,165 USD
View
B
Retailer 12
-
$45,027 SGD
$35,221 USD
View
B+
Retailer 13
-
$46,759 SGD
$36,576 USD
View
B+
Retailer 14
-
$48,730 SGD
€36,303 EUR
View
B
Retailer 15
-
$57,473 SGD
ZAR 726,278 ZAR
View
Most Expensive
B
MOH London
DD5D6BCC9 · Nov 1
$64,912 SGD
£39,981 GBP
View
15 more retailers have this diamond
Prices start from $36,275 SGDSave up to $28,637 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.

B+
2.50ct Marquise
$36,275 SGD