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Cushion|Natural|GIA

1.51ct E SI2 Cushion Natural Diamond

GD • E/SI2 • GIA 6421495236

Certificate GIA 6421495236

Diamond specifications and retailer prices

From €2,989 EUR
$3,339 USD
As of October 31, 2026
Save €1,470 EUR (33%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,459 EUR at 77 Diamonds · As of November 1, 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 E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6421495236. Listed at 12 retailers as of October 31, 2026, with prices from €2,989 to €4,459, a €1,470 spread on the same certified stone. 77 Diamonds lists it at €4,459. 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
E
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6421495236
Dimensions6.91 × 6.25 × 4.08 mm
L/W Ratio1.11
Top View
6.91 mm6.25 mm1.51 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6421495236
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.2%

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: €4,459 EUR|Low: €2,955 EUR|High: €4,469 EUR|Avg: €3,663 EUR|+2.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 5€2,995 EUR
Retailer 3€3,043 EUR
Retailer 4€3,748 EUR
Retailer 2€4,131 EUR
77 Diamonds€4,459 EUR

41 data points across 5 retailers

12 retailers€2,989 EUR to €4,459 EUR

A
Cheapest Retailer
-
€2,989 EUR
$3,339 USD
A
Retailer 2
-
€2,995 EUR
$3,346 USD
View
A
Retailer 3
-
€3,043 EUR
$3,400 USD
View
A
Retailer 4
-
€3,062 EUR
$3,421 USD
View
B+
Retailer 5
-
€3,194 EUR
$3,568 USD
View
B+
Retailer 6
-
€3,224 EUR
A$5,542 AUD
View
B+
Retailer 7
-
€3,748 EUR
$4,187 USD
View
B+
Retailer 8
-
€3,974 EUR
$4,440 USD
View
B+
Retailer 9
-
€3,974 EUR
$4,440 USD
View
B+
Retailer 10
-
€4,108 EUR
$4,590 USD
View
B+
Retailer 11
-
€4,131 EUR
View
Most Expensive
B+
77 Diamonds
CUSMBYQJVF43F · Nov 1
€4,459 EUR
£3,923 GBP
View
11 more retailers have this diamond
Prices start from €2,989 EURSave up to €1,470 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
€2,989 EUR