CaratHunter
Plans
Cushion|Natural|GIA

2.50ct I SI2 Cushion Natural Diamond

ID • I/SI2 • GIA 6233819021

Certificate GIA 6233819021

Diamond specifications and retailer prices

From $17,579 USD
As of November 2, 2026
Save $5,037 USD (22%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $31,048 USD at MOH London · As of October 11, 2026
View at MOH London

About this 2.5ct natural cushion diamond

This 2.5ct natural cushion sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6233819021. Listed at 6 retailers as of November 2, 2026, with a 29% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6233819021
Dimensions8.90 × 7.49 × 4.88 mm
L/W Ratio1.19
Top View
8.90 mm7.49 mm2.50 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6233819021
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: SmallDepth 65.1%

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 2
Current: $31,048 USD|Low: $17,406 USD|High: $31,048 USD|Avg: $22,397 USD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5$17,579 USD
Retailer 4$18,824 USD
Retailer 2$22,616 USD
Retailer 3$23,733 USD
MOH London$31,048 USD

37 data points across 5 retailers

6 retailers$17,579 USD to $22,616 USD

A
Cheapest Retailer
-
$17,579 USD
Retailer 2
-
$18,237 USD
View
Price last confirmed 21 days ago
B+
Retailer 3
-
$18,781 USD
A$28,894 AUD
View
B+
Retailer 4
-
$18,792 USD
View
B
Retailer 5
-
$22,616 USD
£17,808 GBP
View
Most Expensive
MOH London
EF4ACF285 · Oct 11
$31,048 USD
£24,447 GBP
View
Price last confirmed 22 days ago
5 more retailers have this diamond
Prices start from $17,579 USDSave up to $5,037 USD

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 Cushion
$17,579 USD