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Marquise|Natural|GIA

2.50ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 7556868491

Certificate GIA 7556868491

Diamond specifications and retailer prices

From $22,991 AUD
$16,150 USD
As of October 31, 2026
Save $12,975 AUD (36%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $35,966 AUD at MOH London · As of November 1, 2026
View at MOH London

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 7556868491. Listed at 4 retailers as of October 31, 2026, with prices from $22,991 to $35,966, a $12,975 spread on the same certified stone. MOH London lists it at $35,966. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceStrong
Crown angle40.85°
Pavilion angle42.19°
OriginNatural
Grading LabGIA
CertificateGIA 7556868491
Dimensions12.68 × 7.03 × 4.68 mm
L/W Ratio1.80
Girdle conditionExtremely Thick
Key to symbols
Crystal, Knot, Feather, Cavity
Top View
12.68 mm7.03 mm2.50 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceStrong
CertificateGIA 7556868491
Side View
Table 66.0%Crown 40.85°GirdlePavilion 42.19°CuletDepth 66.5%

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: Oct 31
Current: $35,966 AUD|Low: $22,991 AUD|High: $36,159 AUD|Avg: $28,662 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$22,991 AUD
Retailer 2$26,861 AUD
Retailer 3$27,538 AUD
MOH London$35,966 AUD

15 data points across 4 retailers

4 retailers$22,991 AUD to $35,966 AUD

B+
Cheapest Retailer
-
$22,991 AUD
$16,150 USD
B+
Retailer 2
-
$26,861 AUD
£14,857 GBP
View
B+
Retailer 3
-
$27,538 AUD
$19,344 USD
View
Most Expensive
B
MOH London
A8ED12440 · Nov 1
$35,966 AUD
£19,893 GBP
View
3 more retailers have this diamond
Prices start from $22,991 AUDSave up to $12,975 AUD

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
$22,991 AUD