Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 3485875767

Certificate GIA 3485875767

Diamond specifications and retailer prices

From $7,939 USD
As of October 30, 2026
Save $5,374 USD (40%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $13,313 USD at MOH London · As of October 29, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 3485875767. Listed at 15 retailers as of October 29, 2026, with prices from $7,939 to $13,313, a $5,374 spread on the same certified stone. MOH London lists it at $13,313. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 3485875767
Dimensions6.72 × 6.36 × 4.32 mm
L/W Ratio1.06
Top View
6.72 mm6.36 mm1.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 3485875767
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.0%

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: Oct 30
Current: $13,313 USD|Low: $7,795 USD|High: $13,402 USD|Avg: $9,601 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 10$7,795 USD
Retailer 13$7,939 USD
Retailer 11$7,974 USD
Retailer 4$8,425 USD
Retailer 3$8,478 USD
Retailer 8$8,479 USD
Retailer 5$8,550 USD
Retailer 7$9,267 USD
Retailer 9$9,309 USD
Retailer 12$9,722 USD
Retailer 6$10,685 USD
Retailer 2$12,456 USD
MOH London$13,313 USD

38 data points across 13 retailers

15 retailers$7,939 USD to $13,313 USD

Retailer 1
-
$7,795 USD
Price last confirmed 10 days ago
B
Retailer 2
-
$7,939 USD
View
B
Retailer 3
-
$7,974 USD
View
B+
Retailer 4
-
$8,425 USD
View
B
Retailer 5
-
$8,478 USD
View
Final sale: no returns
B+
Retailer 6
-
$8,479 USD
View
B
Retailer 7
-
$8,550 USD
View
B
Retailer 8
-
$9,267 USD
£7,297 GBP
View
Retailer 9
-
$9,309 USD
A$14,322 AUD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$9,722 USD
View
B
Retailer 11
-
$10,130 USD
View
B
Retailer 12
-
$10,685 USD
€10,176 EUR
View
Retailer 13
-
$11,161 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$12,456 USD
ZAR 201,235 ZAR
View
Most Expensive
B
MOH London
86B9BD96F · Oct 29
$13,313 USD
£10,483 GBP
View
14 more retailers have this diamond
Prices start from $7,939 USDSave up to $5,374 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.

B+
1.51ct Cushion
$7,939 USD