CaratHunter
Plans
Marquise|Natural|GIA

2.51ct D SI2 Marquise Natural Diamond

D/SI2 • GIA 2557627661

Certificate GIA 2557627661

Diamond specifications and retailer prices

From $30,368 SGD
£18,704 GBP
As of November 1, 2026
Save $12,022 SGD (28%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $42,390 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded D colour (colourless) and SI2 clarity (slightly-included) and certified by GIA 2557627661. Listed at 5 retailers as of November 1, 2026, with prices from $30,368 to $42,390, a $12,022 spread on the same certified stone. MOH London lists it at $42,390. 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

2.51
Carat
D
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
Crown angle34.47°
Pavilion angle41.82°
OriginNatural
Grading LabGIA
CertificateGIA 2557627661
Dimensions13.67 × 7.12 × 4.39 mm
L/W Ratio1.92
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Cavity
Top View
13.67 mm7.12 mm2.51 ctD / SI2
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 2557627661
Side View
Table 66.0%Crown 34.47°GirdlePavilion 41.82°CuletDepth 61.7%

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 1
Current: $42,390 SGD|Low: $30,368 SGD|High: $44,033 SGD|Avg: $35,961 SGD|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 2$30,368 SGD
Retailer 3$31,458 SGD
Retailer 5$32,456 SGD
Retailer 4$38,450 SGD
MOH London$42,390 SGD

29 data points across 5 retailers

5 retailers$30,368 SGD to $42,390 SGD

A
Cheapest Retailer
-
$30,368 SGD
£18,704 GBP
B+
Retailer 2
-
$31,458 SGD
$24,607 USD
View
B+
Retailer 3
-
$32,456 SGD
$25,388 USD
View
B+
Retailer 4
-
$38,450 SGD
$30,077 USD
View
Most Expensive
B+
MOH London
8C5775EDA · Nov 1
$42,390 SGD
£26,109 GBP
View
4 more retailers have this diamond
Prices start from $30,368 SGDSave up to $12,022 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
2.51ct Marquise
$30,368 SGD