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Cushion|Natural|GIA

1.30ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1558124148

Certificate GIA 1558124148

Diamond specifications and retailer prices

From HK$21,764 HKD
As of November 6, 2026
Save HK$25,793 HKD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$53,948 HKD at Queensmith · As of October 28, 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 1558124148. Listed at 18 retailers as of November 6, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558124148
Dimensions7.19 × 5.54 × 3.82 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Indented Natural, Needle, Natural
Top View
7.19 mm5.54 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1558124148
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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$53,948 HKD|Low: HK$21,569 HKD|High: HK$55,093 HKD|Avg: HK$31,720 HKD|+0.8%
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
November 7, 2026
Retailer 5HK$21,764 HKD
Retailer 10HK$22,634 HKD
Retailer 7HK$25,934 HKD
Retailer 6HK$26,153 HKD
Retailer 4HK$26,389 HKD
Retailer 14HK$26,671 HKD
Retailer 9HK$27,509 HKD
Retailer 8HK$29,586 HKD
Retailer 15HK$29,727 HKD
Retailer 3HK$30,174 HKD
Retailer 12HK$30,307 HKD
Retailer 11HK$33,285 HKD
Retailer 13HK$34,900 HKD
Retailer 2HK$47,557 HKD
QueensmithHK$53,948 HKD

26 data points across 15 retailers

18 retailersHK$21,764 HKD to HK$47,557 HKD

A
Cheapest Retailer
-
HK$21,764 HKD
A
Retailer 2
-
HK$22,634 HKD
View
A
Retailer 3
-
HK$25,934 HKD
View
A
Retailer 4
-
HK$26,153 HKD
View
A
Retailer 5
-
HK$26,389 HKD
View
Final sale: no returns
A
Retailer 6
-
HK$26,671 HKD
View
A
Retailer 7
-
HK$27,509 HKD
View
B+
Retailer 8
-
HK$27,823 HKD
View
B+
Retailer 9
-
HK$29,586 HKD
View
B+
Retailer 10
-
HK$29,727 HKD
View
B+
Retailer 11
-
HK$30,174 HKD
View
B+
Retailer 12
-
HK$30,307 HKD
View
B+
Retailer 13
-
HK$31,318 HKD
View
Retailer 14
-
HK$32,463 HKD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
HK$33,285 HKD
View
B+
Retailer 16
-
HK$34,900 HKD
View
B
Retailer 17
-
HK$47,557 HKD
View
Most Expensive
Queensmith
1558124148 · Oct 28
HK$53,948 HKD
£5,420 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from HK$21,764 HKDSave up to HK$25,793 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.

A
1.30ct Cushion
HK$21,764 HKD