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Marquise|Natural|IGI

2.51ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 747550630

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 747550630

Diamond specifications and retailer prices

From $20,424 SGD
$15,970 USD
As of November 1, 2026
Save $11,009 SGD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $31,433 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 747550630. Listed at 11 retailers as of November 1, 2026, with prices from $20,424 to $31,433, a $11,009 spread on the same certified stone. MOH London lists it at $31,433. 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
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 747550630
Dimensions12.88 × 6.98 × 4.68 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizePointed
Top View
12.88 mm6.98 mm2.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 747550630
Side View
Table 57.0%Crown 39°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $31,433 SGD|Low: $20,001 SGD|High: $32,240 SGD|Avg: $24,321 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
November 2, 2026
Retailer 4$20,001 SGD
Retailer 12$20,424 SGD
Retailer 13$21,290 SGD
Retailer 9$21,495 SGD
Retailer 11$22,216 SGD
Retailer 2$23,476 SGD
Retailer 8$23,697 SGD
Retailer 7$24,068 SGD
Retailer 6$24,414 SGD
Retailer 3$24,994 SGD
Retailer 5$26,711 SGD
Retailer 10$28,513 SGD
MOH London$31,433 SGD

36 data points across 13 retailers

11 retailers$20,424 SGD to $31,433 SGD

A
Cheapest Retailer
-
$20,424 SGD
$15,970 USD
A
Retailer 2
-
$21,290 SGD
$16,647 USD
View
Final sale: no returns
A
Retailer 3
-
$21,495 SGD
$16,808 USD
View
B+
Retailer 4
-
$22,216 SGD
$17,371 USD
View
A
Retailer 5
-
$23,476 SGD
£14,454 GBP
View
B+
Retailer 6
-
$23,697 SGD
$18,529 USD
View
B+
Retailer 7
-
$24,068 SGD
$18,819 USD
View
A
Retailer 8
-
$24,414 SGD
€18,181 EUR
View
B+
Retailer 9
-
$24,994 SGD
$19,543 USD
View
B+
Retailer 10
-
$28,513 SGD
$22,295 USD
View
Most Expensive
B+
MOH London
BC8D35EA9 · Nov 1
$31,433 SGD
£19,353 GBP
View
10 more retailers have this diamond
Prices start from $20,424 SGDSave up to $11,009 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
$20,424 SGD