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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1553050279

Certificate GIA 1553050279

Diamond specifications and retailer prices

From €2,762 EUR
As of November 6, 2026
Save €3,492 EUR (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €6,254 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded H 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 1553050279. Listed at 10 retailers as of November 2, 2026, with prices from €2,762 to €6,254, a €3,492 spread on the same certified stone. MOH London lists it at €6,254. 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

1.51
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.22°
OriginNatural
Grading LabGIA
CertificateGIA 1553050279
Dimensions7.56 × 5.92 × 4.14 mm
L/W Ratio1.28
Key to symbols
Feather, Crystal, Needle
Top View
7.56 mm5.92 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553050279
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 36.22°Culet: NoneDepth 69.9%

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 6
Current: €6,254 EUR|Low: €2,762 EUR|High: €6,544 EUR|Avg: €4,026 EUR|-4.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6€2,762 EUR
Retailer 5€3,242 EUR
Retailer 8€3,383 EUR
Retailer 4€3,485 EUR
Retailer 2€3,505 EUR
Retailer 9€3,866 EUR
Retailer 7€3,997 EUR
Retailer 3€4,340 EUR
MOH London€6,254 EUR

34 data points across 9 retailers

10 retailers€2,762 EUR to €6,254 EUR

A
Cheapest Retailer
-
€2,762 EUR
A
Retailer 2
-
€3,242 EUR
View
Price last confirmed 3 days ago
A
Retailer 3
-
€3,383 EUR
View
A
Retailer 4
-
€3,485 EUR
View
A
Retailer 5
-
€3,505 EUR
View
A
Retailer 6
-
€3,866 EUR
View
Final sale: no returns
A
Retailer 7
-
€3,997 EUR
View
B+
Retailer 8
-
€4,091 EUR
View
B+
Retailer 9
-
€4,340 EUR
View
Most Expensive
B
MOH London
3EE8400D9 · Nov 2
€6,254 EUR
£5,498 GBP
View
9 more retailers have this diamond
Prices start from €2,762 EURSave up to €3,492 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.

A
1.51ct Cushion
€2,762 EUR