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Cushion|Natural|GIA

1.05ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 5182654799

Certificate GIA 5182654799

Diamond specifications and retailer prices

From HK$19,121 HKD
$2,437 USD
As of November 1, 2026
Save HK$20,299 HKD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$39,419 HKD at MOH London · As of November 1, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5182654799. Listed at 11 retailers as of November 1, 2026, with prices from HK$19,121 to HK$39,419, a HK$20,299 spread on the same certified stone. MOH London lists it at HK$39,419. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5182654799
Dimensions5.92 × 5.91 × 4.09 mm
L/W Ratio1.00
Top View
5.92 mm5.91 mm1.05 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5182654799
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NDepth 69.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$39,419 HKD|Low: HK$21,027 HKD|High: HK$39,898 HKD|Avg: HK$26,995 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 7HK$21,027 HKD
Retailer 6HK$21,357 HKD
Retailer 5HK$25,182 HKD
Retailer 3HK$25,204 HKD
Retailer 2HK$27,483 HKD
Retailer 4HK$28,974 HKD
MOH LondonHK$39,419 HKD

43 data points across 7 retailers

11 retailersHK$19,121 HKD to HK$39,419 HKD

B
Cheapest Retailer
-
HK$19,121 HKD
$2,437 USD
B
Retailer 2
-
HK$21,027 HKD
$2,680 USD
View
B
Retailer 3
-
HK$21,357 HKD
$2,722 USD
View
B
Retailer 4
-
HK$24,213 HKD
$3,086 USD
View
B
Retailer 5
-
HK$24,393 HKD
$3,109 USD
View
Retailer 6
-
HK$25,182 HKD
A$4,938 AUD
View
Price last confirmed 27 days ago
B
Retailer 7
-
HK$25,204 HKD
£2,529 GBP
View
Retailer 8
-
HK$27,359 HKD
$3,487 USD
View
Price last confirmed 11 days ago
B
Retailer 9
-
HK$27,483 HKD
€3,336 EUR
View
B
Retailer 10
-
HK$28,974 HKD
ZAR 59,659 ZAR
View
Most Expensive
B
MOH London
BC771DE4D · Nov 1
HK$39,419 HKD
£3,956 GBP
View
10 more retailers have this diamond
Prices start from HK$19,121 HKDSave up to HK$20,299 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.

B
1.05ct Cushion
HK$19,121 HKD