CaratHunter
Plans
Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6511643903

Certificate GIA 6511643903

Diamond specifications and retailer prices

From €3,981 EUR
As of November 6, 2026
Save €2,871 EUR (42%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €6,852 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6511643903. Listed at 11 retailers as of November 4, 2026, with prices from €3,981 to €6,852, a €2,871 spread on the same certified stone. MOH London lists it at €6,852. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6511643903
Dimensions7.13 × 5.95 × 4.15 mm
L/W Ratio1.20
Top View
7.13 mm5.95 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6511643903
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.8%

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: €6,852 EUR|Low: €3,981 EUR|High: €6,953 EUR|Avg: €4,811 EUR|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9€3,981 EUR
Retailer 2€4,013 EUR
Retailer 8€4,116 EUR
Retailer 5€4,247 EUR
Retailer 11€4,313 EUR
Retailer 10€4,348 EUR
Retailer 3€4,449 EUR
Retailer 4€4,854 EUR
Retailer 6€5,263 EUR
Retailer 7€5,962 EUR
MOH London€6,852 EUR

33 data points across 11 retailers

11 retailers€3,981 EUR to €6,852 EUR

A
Cheapest Retailer
-
€3,981 EUR
Final sale: no returns
A
Retailer 2
-
€4,013 EUR
View
A
Retailer 3
-
€4,116 EUR
View
A
Retailer 4
-
€4,247 EUR
View
Retailer 5
-
€4,313 EUR
View
Price last confirmed 9 days ago
Retailer 6
-
€4,348 EUR
View
Price last confirmed 29 days ago
A
Retailer 7
-
€4,449 EUR
View
A
Retailer 8
-
€4,854 EUR
View
A
Retailer 9
-
€5,263 EUR
View
B+
Retailer 10
-
€5,962 EUR
View
Most Expensive
B+
MOH London
69AF21D71 · Nov 4
€6,852 EUR
£6,024 GBP
View
10 more retailers have this diamond
Prices start from €3,981 EURSave up to €2,871 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
€3,981 EUR