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Cushion|Natural|GIA

1.21ct D SI1 Cushion Natural Diamond

D/SI1 • GIA 1567014123

Certificate GIA 1567014123

Diamond specifications and retailer prices

From HK$24,476 HKD
As of November 6, 2026
Save HK$9,993 HKD (29%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$34,469 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 1567014123. Listed at 7 retailers as of October 31, 2026, with prices from HK$24,476 to HK$34,469, a HK$9,993 spread on the same certified stone. Blue Nile lists it at HK$34,469. 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

1.21
Carat
D
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1567014123
Dimensions7.47 × 5.67 × 3.68 mm
L/W Ratio1.32
Top View
7.47 mm5.67 mm1.21 ctD / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567014123
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$34,469 HKD|Low: HK$24,374 HKD|High: HK$34,798 HKD|Avg: HK$28,674 HKD|-0.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6HK$24,476 HKD
Retailer 2HK$24,492 HKD
Retailer 3HK$24,578 HKD
Retailer 5HK$29,931 HKD
Retailer 4HK$30,958 HKD
Retailer 7HK$32,745 HKD
Blue NileHK$34,469 HKD

44 data points across 7 retailers

7 retailersHK$24,476 HKD to HK$34,469 HKD

B+
Cheapest Retailer
-
HK$24,476 HKD
Final sale: no returns
B+
Retailer 2
-
HK$24,492 HKD
View
B+
Retailer 3
-
HK$24,578 HKD
View
B+
Retailer 4
-
HK$29,931 HKD
View
Retailer 5
-
HK$30,958 HKD
View
Price last confirmed 11 days ago
B
Retailer 6
-
HK$32,745 HKD
View
Most Expensive
B
Blue Nile
30380913 · Oct 31
HK$34,469 HKD
$4,398 USD
View
6 more retailers have this diamond
Prices start from HK$24,476 HKDSave up to HK$9,993 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$24,476 HKD