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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 HK$12,453 HKD
As of November 2, 2026
Save HK$15,487 HKD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$27,941 HKD 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 HK$12,453 to HK$27,941, a HK$15,487 spread on the same certified stone. MOH London lists it at HK$27,941. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$27,941 HKD|Low: HK$12,252 HKD|High: HK$28,688 HKD|Avg: HK$17,200 HKD|-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 3, 2026
Retailer 17HK$12,453 HKD
Retailer 3HK$13,331 HKD
Retailer 4HK$13,684 HKD
Retailer 6HK$13,927 HKD
Retailer 15HK$14,170 HKD
Retailer 13HK$14,524 HKD
Retailer 9HK$14,729 HKD
Retailer 12HK$15,033 HKD
Retailer 14HK$15,122 HKD
Retailer 16HK$15,300 HKD
Retailer 18HK$15,558 HKD
Retailer 8HK$15,692 HKD
Retailer 20HK$15,904 HKD
Retailer 10HK$16,579 HKD
Retailer 2HK$17,352 HKD
Retailer 7HK$17,481 HKD
Retailer 5HK$19,606 HKD
Retailer 19HK$21,774 HKD
Retailer 11HK$25,556 HKD
MOH LondonHK$27,941 HKD

19 data points across 20 retailers

22 retailersHK$12,453 HKD to HK$27,941 HKD

A
Cheapest Retailer
-
HK$12,453 HKD
A
Retailer 2
-
HK$13,331 HKD
$1,699 USD
View
Final sale: no returns
A
Retailer 3
-
HK$13,684 HKD
$1,744 USD
View
A
Retailer 4
-
HK$13,927 HKD
$1,775 USD
View
A
Retailer 5
-
HK$14,170 HKD
$1,806 USD
View
A
Retailer 6
-
HK$14,524 HKD
€1,763 EUR
View
A
Retailer 7
-
HK$14,729 HKD
$1,877 USD
View
A
Retailer 8
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HK$15,033 HKD
$1,916 USD
View
A
Retailer 9
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HK$15,122 HKD
A$2,965 AUD
View
A
Retailer 10
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HK$15,300 HKD
$1,950 USD
View
A
Retailer 11
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HK$15,558 HKD
£1,561 GBP
View
A
Retailer 12
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HK$15,692 HKD
$2,000 USD
View
A
Retailer 13
-
HK$15,904 HKD
$2,027 USD
View
Retailer 14
-
HK$16,579 HKD
$2,113 USD
View
Price last confirmed 13 days ago
A
Retailer 15
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HK$17,352 HKD
£1,741 GBP
View
A
Retailer 16
-
HK$17,481 HKD
$2,228 USD
View
B+
Retailer 17
-
HK$17,840 HKD
A$3,498 AUD
View
B+
Retailer 18
-
HK$19,606 HKD
ZAR 40,368 ZAR
View
Retailer 19
-
HK$20,129 HKD
A$3,947 AUD
View
Price last confirmed 28 days ago
B+
Retailer 20
-
HK$21,774 HKD
€2,643 EUR
View
Retailer 21
-
HK$25,556 HKD
$3,257 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
31D2616AE · Nov 2
HK$27,941 HKD
£2,804 GBP
View
21 more retailers have this diamond
Prices start from HK$12,453 HKDSave up to HK$15,487 HKD

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
HK$12,453 HKD