CaratHunter
Plans
Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 6381887861

Certificate GIA 6381887861

Diamond specifications and retailer prices

From HK$17,854 HKD
As of November 6, 2026
Save HK$19,761 HKD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$37,614 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6381887861. Listed at 23 retailers as of November 4, 2026, with prices from HK$17,854 to HK$37,614, a HK$19,761 spread on the same certified stone. MOH London lists it at HK$37,614. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6381887861
Dimensions6.27 × 5.44 × 3.71 mm
L/W Ratio1.15
Top View
6.27 mm5.44 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6381887861
Side View
Table 60.0%CrownGirdle: VTN-STKPavilionCulet: NoneDepth 68.2%

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 6
Current: HK$37,614 HKD|Low: HK$15,714 HKD|High: HK$38,172 HKD|Avg: HK$23,416 HKD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3HK$17,854 HKD
Retailer 10HK$18,026 HKD
Retailer 8HK$18,865 HKD
Retailer 4HK$20,181 HKD
Retailer 11HK$20,432 HKD
Retailer 12HK$22,188 HKD
Retailer 6HK$23,732 HKD
Retailer 9HK$25,268 HKD
Retailer 5HK$26,373 HKD
Retailer 7HK$27,525 HKD
Retailer 2HK$28,074 HKD
MOH LondonHK$37,614 HKD

45 data points across 12 retailers

23 retailersHK$17,854 HKD to HK$37,614 HKD

B
Cheapest Retailer
-
HK$17,854 HKD
Retailer 2
-
HK$18,026 HKD
View
Price last confirmed 10 days ago
B
Retailer 3
-
HK$18,300 HKD
View
B
Retailer 4
-
HK$18,371 HKD
View
B
Retailer 5
-
HK$18,865 HKD
View
Final sale: no returns
B
Retailer 6
-
HK$18,967 HKD
View
B
Retailer 7
-
HK$19,194 HKD
View
B
Retailer 8
-
HK$19,272 HKD
View
B
Retailer 9
-
HK$20,181 HKD
View
Retailer 10
-
HK$20,432 HKD
View
Price last confirmed 9 days ago
B
Retailer 11
-
HK$22,164 HKD
View
B
Retailer 12
-
HK$22,188 HKD
View
B
Retailer 13
-
HK$22,337 HKD
View
C
Retailer 14
-
HK$23,355 HKD
View
C
Retailer 15
-
HK$23,355 HKD
View
B
Retailer 16
-
HK$23,732 HKD
View
C
Retailer 17
-
HK$24,139 HKD
View
Retailer 18
-
HK$25,268 HKD
View
Price last confirmed 31 days ago
Retailer 19
-
HK$26,193 HKD
View
Price last confirmed 15 days ago
C
Retailer 20
-
HK$26,373 HKD
View
C
Retailer 21
-
HK$27,525 HKD
View
Retailer 22
-
HK$28,074 HKD
View
Most Expensive
C
MOH London
1B61C6405 · Nov 4
HK$37,614 HKD
£3,779 GBP
View
22 more retailers have this diamond
Prices start from HK$17,854 HKDSave up to HK$19,761 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
1.00ct Cushion
HK$17,854 HKD