Cushion|Natural|GIA

1.23ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 7541486309

Certificate GIA 7541486309

Diamond specifications and retailer prices

From HK$21,451 HKD
$2,737 USD
As of November 6, 2026
5 retailers carry this diamond
Most expensive: HK$21,451 HKD at With Clarity
View at With Clarity

About this 1.23ct natural cushion diamond

This 1.23ct natural cushion sits in the classic one-carat band, graded I 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 7541486309. Listed at 5 retailers as of November 6, 2026. 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

1.23
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7541486309
Dimensions6.36 × 6.08 × 4.19 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle
Top View
6.36 mm6.08 mm1.23 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7541486309
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.0%

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$11,333 HKD|Low: HK$11,333 HKD|High: HK$22,000 HKD|Avg: HK$16,824 HKD|-11.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
With Clarity
October 24, 2026
Retailer 1HK$11,333 HKD
Retailer 4HK$13,958 HKD
Retailer 2HK$15,753 HKD
Retailer 3HK$16,827 HKD
Retailer 6HK$17,039 HKD
Retailer 5HK$19,931 HKD
With ClarityHK$21,451 HKD

9 data points across 7 retailers

5 retailers

Retailer 1
-
HK$11,333 HKD
Price last confirmed 8 days ago
Retailer 2
-
HK$13,958 HKD
View
Price last confirmed 8 days ago
Retailer 3
-
HK$15,753 HKD
View
Price last confirmed 9 days ago
Retailer 4
-
HK$16,827 HKD
View
Price last confirmed 9 days ago
Most Expensive
B+
With Clarity
7541486309 · Nov 6
HK$21,451 HKD
$2,737 USD
View
4 more retailers have this diamond

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+
1.23ct Cushion
HK$21,451 HKD