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Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 1558712621

Certificate GIA 1558712621

Diamond specifications and retailer prices

From $2,536 SGD
As of November 6, 2026
Save $2,864 SGD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,400 SGD at MOH London · As of November 7, 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 1558712621. Listed at 23 retailers as of November 6, 2026, with prices from $2,536 to $5,400, a $2,864 spread on the same certified stone. MOH London lists it at $5,400. 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
FluorescenceMedium
Crown angle37°
Pavilion angle36.1°
OriginNatural
Grading LabGIA
CertificateGIA 1558712621
Dimensions6.25 × 6.10 × 4.15 mm
L/W Ratio1.02
Girdle conditionFaceted
Top View
6.25 mm6.10 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1558712621
Side View
Table 64.0%Crown 37°Girdle: MED-THKPavilion 36.1°Culet: NoneDepth 68.0%

Caratlytics Score

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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: $5,400 SGD|Low: $2,345 SGD|High: $5,676 SGD|Avg: $3,424 SGD|-4.6%
MOH London
Retailer 2
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Retailer 25
November 7, 2026
Retailer 14$2,345 SGD
Retailer 10$2,418 SGD
Retailer 24$2,536 SGD
Retailer 22$2,591 SGD
Retailer 23$2,626 SGD
Retailer 21$2,826 SGD
Retailer 17$2,912 SGD
Retailer 13$3,026 SGD
Retailer 11$3,032 SGD
Retailer 12$3,050 SGD
Retailer 2$3,073 SGD
Retailer 25$3,089 SGD
Retailer 4$3,242 SGD
Retailer 7$3,242 SGD
Retailer 20$3,278 SGD
Retailer 16$3,300 SGD
Retailer 5$3,358 SGD
Retailer 19$3,373 SGD
Retailer 15$3,473 SGD
Retailer 18$3,583 SGD
Retailer 9$3,664 SGD
Retailer 3$3,786 SGD
Retailer 6$3,849 SGD
Retailer 8$3,894 SGD
MOH London$5,400 SGD

21 data points across 25 retailers

23 retailers$2,536 SGD to $5,400 SGD

Retailer 1
-
$2,345 SGD
Price last confirmed 18 days ago
Retailer 2
-
$2,418 SGD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$2,536 SGD
View
A
Retailer 4
-
$2,591 SGD
View
Final sale: no returns
A
Retailer 5
-
$2,626 SGD
View
A
Retailer 6
-
$2,826 SGD
View
Retailer 7
-
$2,912 SGD
View
Price last confirmed 23 days ago
A
Retailer 8
-
$3,026 SGD
View
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Retailer 9
-
$3,073 SGD
View
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Retailer 10
-
$3,089 SGD
View
A
Retailer 11
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$3,222 SGD
View
A
Retailer 12
-
$3,242 SGD
View
A
Retailer 13
-
$3,242 SGD
View
A
Retailer 14
-
$3,278 SGD
View
Retailer 15
-
$3,300 SGD
View
Price last confirmed 17 days ago
A
Retailer 16
-
$3,358 SGD
View
Retailer 17
-
$3,373 SGD
View
Retailer 18
-
$3,473 SGD
View
Price last confirmed 17 days ago
Retailer 19
-
$3,583 SGD
View
Price last confirmed 37 days ago
A
Retailer 20
-
$3,786 SGD
View
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Retailer 21
-
$3,849 SGD
View
A
Retailer 22
-
$3,894 SGD
View
Most Expensive
B+
MOH London
0FE1DCF9E · Nov 7
$5,400 SGD
£3,318 GBP
View
22 more retailers have this diamond
Prices start from $2,536 SGDSave up to $2,864 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
$2,536 SGD