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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 $4,043 SGD
HK$24,700 HKD
As of November 1, 2026
Save $4,885 SGD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,928 SGD 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 $4,043 to $8,928, a $4,885 spread on the same certified stone. MOH London lists it at $8,928. 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
Colour
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: $8,928 SGD|Low: $4,011 SGD|High: $9,130 SGD|Avg: $5,481 SGD|-2.2%
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 3, 2026
Retailer 16$4,043 SGD
Retailer 19$4,081 SGD
Retailer 14$4,241 SGD
Retailer 9$4,293 SGD
Retailer 8$4,373 SGD
Retailer 7$4,465 SGD
Retailer 5$4,630 SGD
Retailer 6$4,837 SGD
Retailer 12$5,000 SGD
Retailer 4$5,052 SGD
Retailer 17$5,052 SGD
Retailer 18$5,218 SGD
Retailer 2$5,461 SGD
Retailer 13$6,040 SGD
Retailer 10$6,042 SGD
Retailer 11$6,073 SGD
Retailer 3$6,346 SGD
Retailer 15$6,562 SGD
MOH London$8,928 SGD

30 data points across 19 retailers

21 retailers$4,043 SGD to $8,928 SGD

A
Cheapest Retailer
-
$4,043 SGD
HK$24,700 HKD
A
Retailer 2
-
$4,081 SGD
$3,191 USD
View
A
Retailer 3
-
$4,241 SGD
$3,316 USD
View
A
Retailer 4
-
$4,293 SGD
$3,357 USD
View
A
Retailer 5
-
$4,373 SGD
$3,419 USD
View
A
Retailer 6
-
$4,434 SGD
A$5,334 AUD
View
A
Retailer 7
-
$4,465 SGD
$3,491 USD
View
Final sale: no returns
A
Retailer 8
-
$4,630 SGD
$3,620 USD
View
A
Retailer 9
-
$4,837 SGD
$3,782 USD
View
Retailer 10
-
$4,980 SGD
$3,894 USD
View
Price last confirmed 23 days ago
A
Retailer 11
-
$5,000 SGD
$3,910 USD
View
A
Retailer 12
-
$5,052 SGD
$3,950 USD
View
A
Retailer 13
-
$5,052 SGD
$3,950 USD
View
A
Retailer 14
-
$5,218 SGD
$4,080 USD
View
A
Retailer 15
-
$5,461 SGD
£3,362 GBP
View
A
Retailer 16
-
$6,040 SGD
€4,498 EUR
View
Retailer 17
-
$6,042 SGD
$4,724 USD
View
Price last confirmed 21 days ago
Retailer 18
-
$6,073 SGD
A$7,306 AUD
View
Price last confirmed 30 days ago
B+
Retailer 19
-
$6,346 SGD
$4,962 USD
View
B+
Retailer 20
-
$6,562 SGD
ZAR 82,894 ZAR
View
Most Expensive
B
MOH London
DA3EB89F6 · Nov 2
$8,928 SGD
£5,497 GBP
View
20 more retailers have this diamond
Prices start from $4,043 SGDSave up to $4,885 SGD

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
$4,043 SGD