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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 $28,383 NZD
$15,970 USD
As of November 1, 2026
Save $15,300 NZD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $43,683 NZD at MOH London · As of November 2, 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 $28,383 to $43,683, a $15,300 spread on the same certified stone. MOH London lists it at $43,683. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $43,683 NZD|Low: $27,795 NZD|High: $44,805 NZD|Avg: $33,800 NZD|+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$27,795 NZD
Retailer 12$28,383 NZD
Retailer 13$29,587 NZD
Retailer 9$29,872 NZD
Retailer 11$30,873 NZD
Retailer 2$32,624 NZD
Retailer 8$32,932 NZD
Retailer 7$33,447 NZD
Retailer 6$33,929 NZD
Retailer 3$34,734 NZD
Retailer 5$37,120 NZD
Retailer 10$39,625 NZD
MOH London$43,683 NZD

36 data points across 13 retailers

11 retailers$28,383 NZD to $43,683 NZD

A
Cheapest Retailer
-
$28,383 NZD
$15,970 USD
A
Retailer 2
-
$29,587 NZD
$16,647 USD
View
Final sale: no returns
A
Retailer 3
-
$29,872 NZD
$16,808 USD
View
B+
Retailer 4
-
$30,873 NZD
$17,371 USD
View
A
Retailer 5
-
$32,624 NZD
£14,454 GBP
View
B+
Retailer 6
-
$32,932 NZD
$18,529 USD
View
B+
Retailer 7
-
$33,447 NZD
$18,819 USD
View
A
Retailer 8
-
$33,929 NZD
€18,181 EUR
View
B+
Retailer 9
-
$34,734 NZD
$19,543 USD
View
B+
Retailer 10
-
$39,625 NZD
$22,295 USD
View
Most Expensive
B+
MOH London
BC8D35EA9 · Nov 2
$43,683 NZD
£19,353 GBP
View
10 more retailers have this diamond
Prices start from $28,383 NZDSave up to $15,300 NZD

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
$28,383 NZD