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Cushion|Natural|GIA

1.21ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 5136915906

Certificate GIA 5136915906

Diamond specifications and retailer prices

From HK$34,704 HKD
As of November 4, 2026
Save HK$28,341 HKD (45%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$63,045 HKD at MOH London · As of November 7, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded G 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 5136915906. Listed at 9 retailers as of November 4, 2026, with prices from HK$34,704 to HK$63,045, a HK$28,341 spread on the same certified stone. MOH London lists it at HK$63,045. 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

1.21
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5136915906
Dimensions5.85 × 5.75 × 3.76 mm
L/W Ratio1.02
Top View
5.85 mm5.75 mm1.21 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 5136915906
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 65.4%

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 4
Current: HK$63,045 HKD|Low: HK$34,524 HKD|High: HK$64,150 HKD|Avg: HK$43,166 HKD|+1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 9HK$34,704 HKD
Retailer 5HK$34,994 HKD
Retailer 7HK$35,801 HKD
Retailer 8HK$39,798 HKD
Retailer 6HK$40,120 HKD
Retailer 2HK$43,333 HKD
Retailer 3HK$44,783 HKD
Retailer 4HK$48,553 HKD
MOH LondonHK$63,045 HKD

43 data points across 9 retailers

9 retailersHK$34,704 HKD to HK$63,045 HKD

B
Cheapest Retailer
-
HK$34,704 HKD
B
Retailer 2
-
HK$34,994 HKD
View
B
Retailer 3
-
HK$35,801 HKD
View
Retailer 4
-
HK$39,798 HKD
View
Price last confirmed 9 days ago
Retailer 5
-
HK$40,120 HKD
View
Price last confirmed 29 days ago
B
Retailer 6
-
HK$43,333 HKD
View
B
Retailer 7
-
HK$44,783 HKD
View
B
Retailer 8
-
HK$48,553 HKD
View
Most Expensive
B
MOH London
FC016585B · Nov 7
HK$63,045 HKD
£6,334 GBP
View
8 more retailers have this diamond
Prices start from HK$34,704 HKDSave up to HK$28,341 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
1.21ct Cushion
HK$34,704 HKD