Cushion|Natural|GIA

1.51ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 1425646526

Certificate GIA 1425646526

Diamond specifications and retailer prices

From $3,532 USD
As of October 30, 2026
Save $1,558 USD (31%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,090 USD at 77 Diamonds · As of October 30, 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 12 retailers as of October 30, 2026, with prices from $3,532 to $5,090, a $1,558 spread on the same certified stone. 77 Diamonds lists it at $5,090. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,090 USD|Low: $3,487 USD|High: $5,109 USD|Avg: $4,479 USD|+2.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 5$3,532 USD
Retailer 3$3,600 USD
Retailer 4$4,437 USD
Retailer 7$4,710 USD
Retailer 8$4,710 USD
Retailer 6$4,870 USD
Retailer 2$4,907 USD
77 Diamonds$5,090 USD

41 data points across 8 retailers

12 retailers$3,532 USD to $5,090 USD

A
Cheapest Retailer
-
$3,532 USD
Retailer 2
-
$3,600 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$3,606 USD
View
A
Retailer 4
-
$3,644 USD
View
A
Retailer 5
-
$3,688 USD
View
A
Retailer 6
-
$3,823 USD
A$5,882 AUD
View
B+
Retailer 7
-
$4,437 USD
View
B+
Retailer 8
-
$4,710 USD
View
B+
Retailer 9
-
$4,710 USD
View
B+
Retailer 10
-
$4,870 USD
View
B+
Retailer 11
-
$4,907 USD
€4,673 EUR
View
Most Expensive
B+
77 Diamonds
CUSMB7JFGWDUP · Oct 30
$5,090 USD
£4,008 GBP
View
11 more retailers have this diamond
Prices start from $3,532 USDSave up to $1,558 USD

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
$3,532 USD