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Cushion|Natural|GIA

1.54ct J SI1 Cushion Natural Diamond

ID • J/SI1 • GIA 6512596055

Certificate GIA 6512596055

Diamond specifications and retailer prices

From HK$17,567 HKD
$2,239 USD
As of November 2, 2026
Save HK$16,800 HKD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$34,368 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.54ct natural cushion diamond

This 1.54ct natural cushion sits in the one-and-a-half to two 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 6512596055. Listed at 14 retailers as of October 29, 2026, with prices from HK$17,567 to HK$34,368, a HK$16,800 spread on the same certified stone. MOH London lists it at HK$34,368. 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

1.54
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.68°
OriginNatural
Grading LabGIA
CertificateGIA 6512596055
Dimensions7.57 × 6.25 × 4.22 mm
L/W Ratio1.21
Top View
7.57 mm6.25 mm1.54 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512596055
Side View
Table 62.0%Crown 35.68°Girdle: Very ThickPavilionCulet: NoneDepth 67.6%

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$34,368 HKD|Low: HK$16,438 HKD|High: HK$38,852 HKD|Avg: HK$21,955 HKD|-11.5%
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
November 2, 2026
Retailer 4HK$17,567 HKD
Retailer 11HK$17,622 HKD
Retailer 12HK$17,999 HKD
Retailer 2HK$18,772 HKD
Retailer 13HK$19,380 HKD
Retailer 14HK$19,513 HKD
Retailer 10HK$20,612 HKD
Retailer 7HK$20,850 HKD
Retailer 8HK$21,145 HKD
Retailer 3HK$21,184 HKD
Retailer 9HK$23,758 HKD
Retailer 6HK$25,789 HKD
Retailer 5HK$26,717 HKD
MOH LondonHK$34,368 HKD

28 data points across 14 retailers

14 retailersHK$17,567 HKD to HK$34,368 HKD

A
Cheapest Retailer
-
HK$17,567 HKD
$2,239 USD
A
Retailer 2
-
HK$17,622 HKD
$2,246 USD
View
A
Retailer 3
-
HK$17,999 HKD
$2,294 USD
View
Final sale: no returns
A
Retailer 4
-
HK$18,772 HKD
£1,884 GBP
View
A
Retailer 5
-
HK$19,380 HKD
$2,470 USD
View
A
Retailer 6
-
HK$19,513 HKD
$2,487 USD
View
A
Retailer 7
-
HK$20,612 HKD
$2,627 USD
View
A
Retailer 8
-
HK$20,850 HKD
£2,092 GBP
View
A
Retailer 9
-
HK$21,145 HKD
$2,695 USD
View
A
Retailer 10
-
HK$21,184 HKD
$2,700 USD
View
Retailer 11
-
HK$23,758 HKD
ZAR 48,918 ZAR
View
Price last confirmed 7 days ago
Retailer 12
-
HK$25,789 HKD
A$5,057 AUD
View
Price last confirmed 26 days ago
Retailer 13
-
HK$29,821 HKD
$3,801 USD
View
Price last confirmed 67 days ago
Most Expensive
B+
MOH London
9DFD4E605 · Oct 29
HK$34,368 HKD
£3,449 GBP
View
13 more retailers have this diamond
Prices start from HK$17,567 HKDSave up to HK$16,800 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
1.54ct Cushion
HK$17,567 HKD