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Marquise|Natural|GIA

2.50ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 7538779910

Certificate GIA 7538779910

Diamond specifications and retailer prices

From $32,294 AUD
£17,862 GBP
As of November 1, 2026
Save $960 AUD (3%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $45,282 AUD at MOH London · As of October 11, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 7538779910. Listed at 10 retailers as of November 1, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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 (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7538779910
Dimensions13.17 × 6.94 × 4.42 mm
L/W Ratio1.90
Top View
13.17 mm6.94 mm2.50 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7538779910
Side View
Table 63.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 63.7%

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 1
Current: $45,282 AUD|Low: $18,104 AUD|High: $45,282 AUD|Avg: $31,918 AUD
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
Retailer 14
November 1, 2026
Retailer 6$18,104 AUD
Retailer 5$24,279 AUD
Retailer 12$26,338 AUD
Retailer 10$28,649 AUD
Retailer 3$30,611 AUD
Retailer 11$31,036 AUD
Retailer 14$32,230 AUD
Retailer 2$32,294 AUD
Retailer 7$33,254 AUD
Retailer 9$33,807 AUD
Retailer 8$34,613 AUD
Retailer 13$40,585 AUD
Retailer 4$41,572 AUD
MOH London$45,282 AUD

30 data points across 14 retailers

10 retailers$32,294 AUD to $33,254 AUD

Retailer 1
-
$26,338 AUD
$18,501 USD
Price last confirmed 9 days ago
Retailer 2
-
$28,649 AUD
$20,124 USD
View
Price last confirmed 21 days ago
Retailer 3
-
$30,611 AUD
$21,503 USD
View
Price last confirmed 22 days ago
Retailer 4
-
$31,036 AUD
$21,801 USD
View
Price last confirmed 10 days ago
Retailer 5
-
$32,230 AUD
$22,640 USD
View
Price last confirmed 24 days ago
B+
Retailer 6
-
$32,294 AUD
£17,862 GBP
View
B+
Retailer 7
-
$33,254 AUD
$23,359 USD
View
Retailer 8
-
$33,807 AUD
£18,699 GBP
View
Price last confirmed 21 days ago
Retailer 9
-
$40,585 AUD
$28,509 USD
View
Price last confirmed 23 days ago
Most Expensive
MOH London
700F604F3 · Oct 11
$45,282 AUD
£25,046 GBP
View
Price last confirmed 22 days ago
9 more retailers have this diamond
Prices start from $32,294 AUDSave up to $960 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
$32,294 AUD