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Cushion|Natural|GIA

1.30ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 3555596821

Certificate GIA 3555596821

Diamond specifications and retailer prices

From HK$30,190 HKD
As of November 5, 2026
Save HK$4,538 HKD (13%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$57,233 HKD at Queensmith · As of October 11, 2026
View at Queensmith

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 3555596821. Listed at 12 retailers as of November 5, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.30
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555596821
Dimensions7.51 × 5.51 × 3.76 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Indented Natural, Needle, Natural
Top View
7.51 mm5.51 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555596821
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.3%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: HK$57,233 HKD|Low: HK$25,675 HKD|High: HK$57,233 HKD|Avg: HK$35,980 HKD|+0.4%
Queensmith
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
Retailer 15
Retailer 16
November 5, 2026
Retailer 3HK$25,675 HKD
Retailer 12HK$27,588 HKD
Retailer 8HK$29,006 HKD
Retailer 15HK$29,531 HKD
Retailer 2HK$30,190 HKD
Retailer 5HK$31,224 HKD
Retailer 4HK$31,232 HKD
Retailer 6HK$32,635 HKD
Retailer 14HK$34,281 HKD
Retailer 9HK$34,916 HKD
Retailer 7HK$35,441 HKD
Retailer 11HK$36,561 HKD
Retailer 10HK$38,638 HKD
Retailer 16HK$41,334 HKD
Retailer 13HK$55,105 HKD
QueensmithHK$57,233 HKD

22 data points across 16 retailers

12 retailersHK$30,190 HKD to HK$34,728 HKD

Retailer 1
-
HK$25,675 HKD
Price last confirmed 27 days ago
Retailer 2
-
HK$29,531 HKD
View
Price last confirmed 30 days ago
B+
Retailer 3
-
HK$30,190 HKD
View
B+
Retailer 4
-
HK$31,224 HKD
View
Retailer 5
-
HK$32,635 HKD
View
Price last confirmed 28 days ago
Retailer 6
-
HK$34,281 HKD
View
Price last confirmed 30 days ago
B+
Retailer 7
-
HK$34,728 HKD
View
Retailer 8
-
HK$35,441 HKD
View
Price last confirmed 29 days ago
Retailer 9
-
HK$36,561 HKD
View
Price last confirmed 29 days ago
Retailer 10
-
HK$41,334 HKD
View
Price last confirmed 38 days ago
Retailer 11
-
HK$55,105 HKD
View
Price last confirmed 30 days ago
Most Expensive
Queensmith
3555596821 · Oct 11
HK$57,233 HKD
£5,750 GBP
View
Price last confirmed 26 days ago
11 more retailers have this diamond
Prices start from HK$30,190 HKDSave up to HK$4,538 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+
1.30ct Cushion
HK$30,190 HKD