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Cushion|Natural|GIA

1.51ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 6542448794

Certificate GIA 6542448794

Diamond specifications and retailer prices

From $3,162 USD
HK$24,700 HKD
As of November 1, 2026
Save $3,820 USD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,981 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542448794. Listed at 21 retailers as of November 1, 2026, with prices from $3,162 to $6,981, a $3,820 spread on the same certified stone. MOH London lists it at $6,981. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle36.5°
OriginNatural
Grading LabGIA
CertificateGIA 6542448794
Dimensions6.61 × 6.44 × 4.39 mm
L/W Ratio1.03
Top View
6.61 mm6.44 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542448794
Side View
Table 58.0%Crown 37.4°Girdle: MED-STKPavilion 36.5°Culet: NDepth 68.2%

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: $6,981 USD|Low: $3,136 USD|High: $7,139 USD|Avg: $4,335 USD|-2.1%
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
Retailer 18
Retailer 19
November 2, 2026
Retailer 16$3,162 USD
Retailer 19$3,191 USD
Retailer 14$3,316 USD
Retailer 9$3,357 USD
Retailer 8$3,419 USD
Retailer 7$3,491 USD
Retailer 5$3,620 USD
Retailer 6$3,782 USD
Retailer 2$3,910 USD
Retailer 4$3,950 USD
Retailer 17$3,950 USD
Retailer 18$4,080 USD
Retailer 13$4,270 USD
Retailer 12$4,723 USD
Retailer 10$4,724 USD
Retailer 11$4,749 USD
Retailer 3$4,962 USD
Retailer 15$5,131 USD
MOH London$6,981 USD

30 data points across 19 retailers

21 retailers$3,162 USD to $6,981 USD

A
Cheapest Retailer
-
$3,162 USD
HK$24,700 HKD
A
Retailer 2
-
$3,191 USD
View
A
Retailer 3
-
$3,316 USD
View
A
Retailer 4
-
$3,357 USD
View
A
Retailer 5
-
$3,419 USD
View
A
Retailer 6
-
$3,467 USD
A$5,334 AUD
View
A
Retailer 7
-
$3,491 USD
View
Final sale: no returns
A
Retailer 8
-
$3,620 USD
View
A
Retailer 9
-
$3,782 USD
View
Retailer 10
-
$3,894 USD
View
Price last confirmed 23 days ago
A
Retailer 11
-
$3,910 USD
View
A
Retailer 12
-
$3,950 USD
View
A
Retailer 13
-
$3,950 USD
View
A
Retailer 14
-
$4,080 USD
View
A
Retailer 15
-
$4,270 USD
£3,362 GBP
View
A
Retailer 16
-
$4,723 USD
€4,498 EUR
View
Retailer 17
-
$4,724 USD
View
Price last confirmed 21 days ago
Retailer 18
-
$4,749 USD
A$7,306 AUD
View
Price last confirmed 29 days ago
B+
Retailer 19
-
$4,962 USD
View
B+
Retailer 20
-
$5,131 USD
ZAR 82,894 ZAR
View
Most Expensive
B
MOH London
DA3EB89F6 · Nov 2
$6,981 USD
£5,497 GBP
View
20 more retailers have this diamond
Prices start from $3,162 USDSave up to $3,820 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
$3,162 USD