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Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6555373299

Certificate GIA 6555373299

Diamond specifications and retailer prices

From $5,462 SGD
As of November 7, 2026
Save $4,801 SGD (47%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $11,190 SGD at MOH London · As of October 26, 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 6555373299. Listed at 25 retailers as of November 6, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555373299
Dimensions7.39 × 5.62 × 3.88 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Indented Natural, Needle, Natural
Top View
7.39 mm5.62 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555373299
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $11,190 SGD|Low: $4,379 SGD|High: $11,310 SGD|Avg: $6,799 SGD|-1.1%
MOH London
Retailer 2
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Retailer 4
Retailer 5
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Retailer 8
Retailer 9
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Retailer 11
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Retailer 22
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Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
November 7, 2026
Retailer 21$4,379 SGD
Retailer 18$4,423 SGD
Retailer 20$5,337 SGD
Retailer 17$5,462 SGD
Retailer 10$5,543 SGD
Retailer 12$5,626 SGD
Retailer 27$5,633 SGD
Retailer 14$5,917 SGD
Retailer 9$5,985 SGD
Retailer 15$6,299 SGD
Retailer 25$6,357 SGD
Retailer 28$6,380 SGD
Retailer 4$6,676 SGD
Retailer 6$6,690 SGD
Retailer 2$6,796 SGD
Retailer 22$6,807 SGD
Retailer 11$7,073 SGD
Retailer 3$7,126 SGD
Retailer 5$7,126 SGD
Retailer 26$7,356 SGD
Retailer 7$7,418 SGD
Retailer 13$7,418 SGD
Retailer 16$7,743 SGD
Retailer 23$7,896 SGD
Retailer 24$8,543 SGD
Retailer 19$9,244 SGD
Retailer 8$10,263 SGD
MOH London$11,190 SGD

17 data points across 28 retailers

25 retailers$5,462 SGD to $10,263 SGD

Retailer 1
-
$4,379 SGD
Price last confirmed 57 days ago
B+
Retailer 2
-
$5,462 SGD
View
Retailer 3
-
$5,543 SGD
View
Price last confirmed 12 days ago
Retailer 4
-
$5,626 SGD
View
Price last confirmed 12 days ago
Retailer 5
-
$5,633 SGD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$5,917 SGD
View
B
Retailer 7
-
$5,985 SGD
View
Retailer 8
-
$6,299 SGD
View
Price last confirmed 13 days ago
Retailer 9
-
$6,357 SGD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
$6,380 SGD
View
B
Retailer 11
-
$6,676 SGD
View
Retailer 12
-
$6,690 SGD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$6,796 SGD
View
B+
Retailer 14
-
$6,807 SGD
View
Retailer 15
-
$7,073 SGD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$7,126 SGD
View
B
Retailer 17
-
$7,126 SGD
View
B
Retailer 18
-
$7,356 SGD
View
B
Retailer 19
-
$7,418 SGD
View
B
Retailer 20
-
$7,418 SGD
View
Retailer 21
-
$7,743 SGD
View
Price last confirmed 24 days ago
B
Retailer 22
-
$7,896 SGD
View
Retailer 23
-
$8,543 SGD
View
Price last confirmed 11 days ago
B
Retailer 24
-
$10,263 SGD
View
Most Expensive
MOH London
94BD62CEC · Oct 26
$11,190 SGD
£6,875 GBP
View
Price last confirmed 11 days ago
24 more retailers have this diamond
Prices start from $5,462 SGDSave up to $4,801 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.

B+
1.30ct Cushion
$5,462 SGD