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Cushion|Natural|GIA

1.51ct F SI2 Cushion Natural Diamond

VG • F/SI2 • GIA 5553205520

Certificate GIA 5553205520

Diamond specifications and retailer prices

From $3,129 USD
As of November 1, 2026
Save $3,841 USD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,970 USD at MOH London · As of November 2, 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 F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5553205520. Listed at 18 retailers as of November 1, 2026, with prices from $3,129 to $6,970, a $3,841 spread on the same certified stone. MOH London lists it at $6,970. 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
F
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle36.1°
OriginNatural
Grading LabGIA
CertificateGIA 5553205520
Dimensions6.59 × 6.46 × 4.37 mm
L/W Ratio1.02
Top View
6.59 mm6.46 mm1.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553205520
Side View
Table 59.0%Crown 37.3°Girdle: THN-STKPavilion 36.1°Culet: NoneDepth 67.6%

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: Nov 1
Current: $6,970 USD|Low: $3,129 USD|High: $7,036 USD|Avg: $4,303 USD|-0.7%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 3, 2026
Retailer 9$3,129 USD
Retailer 13$3,315 USD
Retailer 12$3,465 USD
Retailer 15$3,488 USD
Retailer 6$3,581 USD
Retailer 8$3,660 USD
Retailer 4$3,965 USD
Retailer 3$3,967 USD
Retailer 10$4,123 USD
Retailer 14$4,200 USD
Retailer 17$4,200 USD
Retailer 16$4,340 USD
Retailer 2$4,477 USD
Retailer 11$4,665 USD
Retailer 5$4,951 USD
Retailer 7$5,202 USD
MOH London$6,970 USD

28 data points across 17 retailers

18 retailers$3,129 USD to $6,970 USD

A
Cheapest Retailer
-
$3,129 USD
A
Retailer 2
-
$3,315 USD
HK$25,900 HKD
View
A
Retailer 3
-
$3,465 USD
View
A
Retailer 4
-
$3,488 USD
View
A
Retailer 5
-
$3,581 USD
View
A
Retailer 6
-
$3,630 USD
A$5,584 AUD
View
A
Retailer 7
-
$3,660 USD
View
Final sale: no returns
A
Retailer 8
-
$3,965 USD
View
A
Retailer 9
-
$3,967 USD
View
A
Retailer 10
-
$4,123 USD
£3,247 GBP
View
A
Retailer 11
-
$4,200 USD
View
A
Retailer 12
-
$4,200 USD
View
A
Retailer 13
-
$4,340 USD
View
A
Retailer 14
-
$4,477 USD
£3,525 GBP
View
A
Retailer 15
-
$4,665 USD
€4,443 EUR
View
Retailer 16
-
$4,951 USD
View
Price last confirmed 10 days ago
B+
Retailer 17
-
$5,202 USD
View
Most Expensive
B+
MOH London
002CD75B5 · Nov 2
$6,970 USD
£5,488 GBP
View
17 more retailers have this diamond
Prices start from $3,129 USDSave up to $3,841 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
$3,129 USD