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Cushion|Natural|GIA

1.05ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6542758912

Certificate GIA 6542758912

Diamond specifications and retailer prices

From $2,030 SGD
HK$12,400 HKD
As of November 2, 2026
Save $2,524 SGD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,554 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-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 6542758912. Listed at 22 retailers as of November 2, 2026, with prices from $2,030 to $4,554, a $2,524 spread on the same certified stone. MOH London lists it at $4,554. 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

1.05
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542758912
Dimensions5.92 × 5.90 × 3.88 mm
L/W Ratio1.00
Top View
5.92 mm5.90 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542758912
Side View
Table 64.0%CrownGirdle: STK-VTKPavilion 40.6°Culet: NoneDepth 65.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $4,554 SGD|Low: $1,997 SGD|High: $4,676 SGD|Avg: $2,809 SGD|-2.6%
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
Retailer 20
November 2, 2026
Retailer 16$2,030 SGD
Retailer 20$2,173 SGD
Retailer 4$2,230 SGD
Retailer 6$2,270 SGD
Retailer 14$2,310 SGD
Retailer 2$2,367 SGD
Retailer 9$2,401 SGD
Retailer 12$2,450 SGD
Retailer 13$2,465 SGD
Retailer 15$2,494 SGD
Retailer 17$2,536 SGD
Retailer 8$2,558 SGD
Retailer 19$2,592 SGD
Retailer 10$2,702 SGD
Retailer 7$2,849 SGD
Retailer 3$2,852 SGD
Retailer 5$3,196 SGD
Retailer 18$3,549 SGD
Retailer 11$4,166 SGD
MOH London$4,554 SGD

18 data points across 20 retailers

22 retailers$2,030 SGD to $4,554 SGD

A
Cheapest Retailer
-
$2,030 SGD
HK$12,400 HKD
A
Retailer 2
-
$2,173 SGD
$1,699 USD
View
Final sale: no returns
A
Retailer 3
-
$2,230 SGD
$1,744 USD
View
A
Retailer 4
-
$2,270 SGD
$1,775 USD
View
A
Retailer 5
-
$2,310 SGD
$1,806 USD
View
A
Retailer 6
-
$2,367 SGD
€1,763 EUR
View
A
Retailer 7
-
$2,401 SGD
$1,877 USD
View
A
Retailer 8
-
$2,450 SGD
$1,916 USD
View
A
Retailer 9
-
$2,465 SGD
A$2,965 AUD
View
A
Retailer 10
-
$2,494 SGD
$1,950 USD
View
A
Retailer 11
-
$2,536 SGD
£1,561 GBP
View
A
Retailer 12
-
$2,558 SGD
$2,000 USD
View
A
Retailer 13
-
$2,592 SGD
$2,027 USD
View
Retailer 14
-
$2,702 SGD
$2,113 USD
View
Price last confirmed 13 days ago
A
Retailer 15
-
$2,849 SGD
$2,228 USD
View
A
Retailer 16
-
$2,852 SGD
£1,756 GBP
View
B+
Retailer 17
-
$2,908 SGD
A$3,498 AUD
View
B+
Retailer 18
-
$3,196 SGD
ZAR 40,368 ZAR
View
Retailer 19
-
$3,281 SGD
A$3,947 AUD
View
Price last confirmed 28 days ago
B+
Retailer 20
-
$3,549 SGD
€2,643 EUR
View
Retailer 21
-
$4,166 SGD
$3,257 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
31D2616AE · Nov 2
$4,554 SGD
£2,804 GBP
View
21 more retailers have this diamond
Prices start from $2,030 SGDSave up to $2,524 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
1.05ct Cushion
$2,030 SGD