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Marquise|Natural|GIA

2.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2567198254

Certificate GIA 2567198254

Diamond specifications and retailer prices

From $42,449 NZD
As of November 6, 2026
Save $7,671 NZD (15%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $50,120 NZD at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2567198254. Listed at 3 retailers as of November 5, 2026, with prices from $42,449 to $50,120, a $7,671 spread on the same certified stone. 77 Diamonds lists it at $50,120. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2567198254
Dimensions13.32 × 7.13 × 4.31 mm
L/W Ratio1.87
Top View
13.32 mm7.13 mm2.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2567198254
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.5%

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 6
Current: $50,120 NZD|Low: $42,449 NZD|High: $51,131 NZD|Avg: $46,506 NZD|-1.6%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2$42,449 NZD
Retailer 3$43,476 NZD
77 Diamonds$50,120 NZD

38 data points across 3 retailers

3 retailers$42,449 NZD to $50,120 NZD

B+
Cheapest Retailer
-
$42,449 NZD
B+
Retailer 2
-
$43,476 NZD
View
Most Expensive
B
77 Diamonds
MQMBR5E4RQSA · Nov 5
$50,120 NZD
£21,877 GBP
View
2 more retailers have this diamond
Prices start from $42,449 NZDSave up to $7,671 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.

B+
2.50ct Marquise
$42,449 NZD