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Cushion|Natural|GIA

1.51ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 1425646526

Certificate GIA 1425646526

Diamond specifications and retailer prices

From €3,161 EUR
$3,532 USD
As of October 31, 2026
Save €1,395 EUR (31%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,556 EUR at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1425646526. Listed at 11 retailers as of October 31, 2026, with prices from €3,161 to €4,556, a €1,395 spread on the same certified stone. 77 Diamonds lists it at €4,556. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1425646526
Dimensions6.95 × 6.28 × 4.26 mm
L/W Ratio1.11
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.95 mm6.28 mm1.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1425646526
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.9%

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: Oct 31
Current: €4,556 EUR|Low: €3,121 EUR|High: €4,573 EUR|Avg: €4,010 EUR|+2.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5€3,161 EUR
Retailer 3€3,222 EUR
Retailer 4€3,972 EUR
Retailer 7€4,216 EUR
Retailer 8€4,216 EUR
Retailer 6€4,359 EUR
Retailer 2€4,407 EUR
77 Diamonds€4,556 EUR

40 data points across 8 retailers

11 retailers€3,161 EUR to €4,556 EUR

A
Cheapest Retailer
-
€3,161 EUR
$3,532 USD
A
Retailer 2
-
€3,228 EUR
$3,606 USD
View
A
Retailer 3
-
€3,262 EUR
$3,644 USD
View
A
Retailer 4
-
€3,301 EUR
$3,688 USD
View
A
Retailer 5
-
€3,422 EUR
A$5,882 AUD
View
B+
Retailer 6
-
€3,972 EUR
$4,437 USD
View
B+
Retailer 7
-
€4,216 EUR
$4,710 USD
View
B+
Retailer 8
-
€4,216 EUR
$4,710 USD
View
B+
Retailer 9
-
€4,359 EUR
$4,870 USD
View
B+
Retailer 10
-
€4,407 EUR
View
Most Expensive
B+
77 Diamonds
CUSMBKG4TCX2Z · Nov 2
€4,556 EUR
£4,008 GBP
View
10 more retailers have this diamond
Prices start from €3,161 EURSave up to €1,395 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
€3,161 EUR