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Marquise|Natural|IGI

2.50ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 799675095

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 799675095

Diamond specifications and retailer prices

From $13,077 NZD
SGD 9,943 SGD
As of November 3, 2026
Save $7,812 NZD (37%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $20,889 NZD at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 2.5ct natural marquise diamond

This 2.5ct 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 799675095. Listed at 7 retailers as of November 2, 2026, with prices from $13,077 to $20,889, a $7,812 spread on the same certified stone. The Diamond Guys lists it at $20,889. 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

2.50
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle38.5°
OriginNatural
Grading LabIGI
CertificateIGI 799675095
Dimensions12.93 × 6.99 × 4.45 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
12.93 mm6.99 mm2.50 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 799675095
Side View
Table 57.0%Crown 40.2°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 63.7%

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 3
Current: $13,077 NZD|Low: $13,024 NZD|High: $24,458 NZD|Avg: $18,194 NZD|-10.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
The Diamond Guys
November 3, 2026
Retailer 1$13,077 NZD
Retailer 7$13,216 NZD
Retailer 4$15,249 NZD
Retailer 5$15,521 NZD
Retailer 2$17,520 NZD
Retailer 3$18,432 NZD
Retailer 6$18,842 NZD
The Diamond Guys$20,889 NZD
Retailer 8$24,458 NZD

30 data points across 9 retailers

7 retailers$13,077 NZD to $20,889 NZD

A
Cheapest Retailer
-
$13,077 NZD
SGD 9,943 SGD
A
Retailer 2
-
$15,249 NZD
$8,580 USD
View
A
Retailer 3
-
$15,521 NZD
$8,733 USD
View
A
Retailer 4
-
$17,520 NZD
$9,857 USD
View
A
Retailer 5
-
$18,432 NZD
€9,877 EUR
View
Retailer 6
-
$18,842 NZD
$10,602 USD
View
Price last confirmed 7 days ago
Most Expensive
B+
The Diamond Guys
1959627130 · Nov 2
$20,889 NZD
$11,753 USD
View
6 more retailers have this diamond
Prices start from $13,077 NZDSave up to $7,812 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
2.50ct Marquise
$13,077 NZD