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Cushion|Natural|GIA

1.51ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 5543768687

Certificate GIA 5543768687

Diamond specifications and retailer prices

From €3,283 EUR
As of November 6, 2026
Save €2,941 EUR (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €6,224 EUR at MOH London · As of November 4, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543768687. Listed at 8 retailers as of November 4, 2026, with prices from €3,283 to €6,224, a €2,941 spread on the same certified stone. MOH London lists it at €6,224. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle37°
OriginNatural
Grading LabGIA
CertificateGIA 5543768687
Dimensions7.91 × 6.00 × 4.06 mm
L/W Ratio1.32
Top View
7.91 mm6.00 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543768687
Side View
Table 62.0%Crown 33.3°Girdle: STK-VTKPavilion 37°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €6,224 EUR|Low: €3,283 EUR|High: €6,783 EUR|Avg: €4,297 EUR|-8.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7€3,283 EUR
Retailer 8€3,421 EUR
Retailer 2€3,718 EUR
Retailer 5€3,731 EUR
Retailer 3€3,781 EUR
Retailer 4€3,864 EUR
Retailer 6€3,976 EUR
MOH London€6,224 EUR

44 data points across 8 retailers

8 retailers€3,283 EUR to €6,224 EUR

B+
Cheapest Retailer
-
€3,283 EUR
B+
Retailer 2
-
€3,421 EUR
View
B+
Retailer 3
-
€3,718 EUR
View
Retailer 4
-
€3,731 EUR
View
Price last confirmed 8 days ago
B+
Retailer 5
-
€3,781 EUR
View
B+
Retailer 6
-
€3,864 EUR
View
B
Retailer 7
-
€3,976 EUR
View
Most Expensive
B
MOH London
59BF3CB5C · Nov 4
€6,224 EUR
£5,472 GBP
View
7 more retailers have this diamond
Prices start from €3,283 EURSave up to €2,941 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.

B+
1.51ct Cushion
€3,283 EUR