Cushion|Natural|GIA

2.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1559342221

Certificate GIA 1559342221

Diamond specifications and retailer prices

From €15,733 EUR

$17,577 USD

As of October 30, 2026

Save €10,943 EUR (41%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: €26,676 EUR at MOH London · As of October 29, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559342221. Listed at 12 retailers as of October 29, 2026, with prices from €15,733 to €26,676, a €10,943 spread on the same certified stone. MOH London lists it at €26,676. 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

Color

SI1

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceFaint

Pavilion angle35.89°

OriginNatural

Grading LabGIA

CertificateGIA 1559342221

Dimensions9.34 × 6.80 × 4.74 mm

L/W Ratio1.37

Key to symbols

Crystal, Feather, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceFaint

CertificateGIA 1559342221

Side View

Caratlytics Score

How it works →

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: Oct 30

Current: €26,676 EUR|Low: €14,367 EUR|High: €27,977 EUR|Avg: €18,590 EUR|-4.6%

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

October 30, 2026

Retailer 13€14,367 EUR

Retailer 10€15,733 EUR

Retailer 2€15,916 EUR

Retailer 3€15,950 EUR

Retailer 11€16,215 EUR

Retailer 12€17,032 EUR

Retailer 8€19,128 EUR

Retailer 9€19,128 EUR

Retailer 4€19,158 EUR

Retailer 5€19,653 EUR

Retailer 7€19,764 EUR

Retailer 6€20,461 EUR

MOH London€26,676 EUR

21 data points across 13 retailers

12 retailers€15,733 EUR to €26,676 EUR

Retailer 1

€14,367 EUR

HK$125,400 HKD

Price last confirmed 37 days ago

Retailer 2

€15,733 EUR

$17,577 USD

View

Retailer 3

€15,916 EUR

View

Price last confirmed 3 days ago

B+

Retailer 4

€16,215 EUR

$18,115 USD

View

B+

Retailer 5

€16,587 EUR

A$28,509 AUD

View

B+

Retailer 6

€17,032 EUR

$19,028 USD

View

Final sale: no returns

B+

Retailer 7

€19,128 EUR

$21,370 USD

View

B+

Retailer 8

€19,128 EUR

$21,370 USD

View

B+

Retailer 9

€19,158 EUR

A$32,928 AUD

View

B+

Retailer 10

€19,764 EUR

$22,080 USD

View

B+

Retailer 11

€20,461 EUR

View

Most Expensive

MOH London

8640C0C1B · Oct 29

€26,676 EUR

£23,467 GBP

View

11 more retailers have this diamond

Prices start from €15,733 EURSave up to €10,943 EUR

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.

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