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Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 2556450159

Certificate GIA 2556450159

Diamond specifications and retailer prices

From $5,265 SGD
As of November 6, 2026
Save $5,673 SGD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,938 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556450159. Listed at 19 retailers as of November 4, 2026, with prices from $5,265 to $10,938, a $5,673 spread on the same certified stone. MOH London lists it at $10,938. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.30
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.67°
Pavilion angle53.38°
OriginNatural
Grading LabGIA
CertificateGIA 2556450159
Dimensions7.93 × 5.64 × 3.89 mm
L/W Ratio1.41
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.93 mm5.64 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556450159
Side View
Table 66.0%Crown 32.67°Girdle: MED-THKPavilion 53.38°Culet: NoneDepth 68.8%

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 6
Current: $10,938 SGD|Low: $5,265 SGD|High: $11,099 SGD|Avg: $7,008 SGD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 8$5,265 SGD
Retailer 4$5,275 SGD
Retailer 10$5,826 SGD
Retailer 11$6,029 SGD
Retailer 9$6,304 SGD
Retailer 3$6,354 SGD
Retailer 2$6,669 SGD
Retailer 5$6,680 SGD
Retailer 6$7,747 SGD
Retailer 7$8,401 SGD
MOH London$10,938 SGD

29 data points across 11 retailers

19 retailers$5,265 SGD to $10,938 SGD

B+
Cheapest Retailer
-
$5,265 SGD
A
Retailer 2
-
$5,275 SGD
View
B+
Retailer 3
-
$5,826 SGD
View
B+
Retailer 4
-
$5,844 SGD
View
B+
Retailer 5
-
$6,006 SGD
View
B
Retailer 6
-
$6,304 SGD
View
B
Retailer 7
-
$6,354 SGD
View
Final sale: no returns
B+
Retailer 8
-
$6,453 SGD
View
B+
Retailer 9
-
$6,669 SGD
View
B+
Retailer 10
-
$6,680 SGD
View
Retailer 11
-
$6,689 SGD
View
Price last confirmed 22 days ago
B
Retailer 12
-
$6,895 SGD
View
Retailer 13
-
$6,941 SGD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$7,082 SGD
View
B
Retailer 15
-
$7,210 SGD
View
B
Retailer 16
-
$7,747 SGD
View
B
Retailer 17
-
$8,401 SGD
View
B
Retailer 18
-
$10,263 SGD
View
Most Expensive
B
MOH London
6D236D827 · Nov 4
$10,938 SGD
£6,720 GBP
View
18 more retailers have this diamond
Prices start from $5,265 SGDSave up to $5,673 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
1.30ct Cushion
$5,265 SGD