CaratHunter
Plans
Cushion|Natural|GIA

1.30ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 3545458575

Certificate GIA 3545458575

Diamond specifications and retailer prices

From HK$18,755 HKD
As of November 6, 2026
Save HK$16,960 HKD (47%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$35,715 HKD at With Clarity · As of November 6, 2026
View at With Clarity

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 H 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 3545458575. Listed at 6 retailers as of November 6, 2026, with prices from HK$18,755 to HK$35,715, a HK$16,960 spread on the same certified stone. With Clarity lists it at HK$35,715. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545458575
Dimensions6.41 × 6.11 × 4.19 mm
L/W Ratio1.05
Top View
6.41 mm6.11 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545458575
Side View
Table 62.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 68.6%

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$22,642 HKD|Low: HK$18,755 HKD|High: HK$35,715 HKD|Avg: HK$26,968 HKD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
November 5, 2026
Retailer 4HK$18,755 HKD
Retailer 5HK$22,580 HKD
Retailer 1HK$22,642 HKD
Retailer 3HK$26,569 HKD
Retailer 2HK$26,976 HKD
Retailer 6HK$29,343 HKD
Retailer 7HK$31,741 HKD
With ClarityHK$35,715 HKD

11 data points across 8 retailers

6 retailersHK$18,755 HKD to HK$35,715 HKD

A
Cheapest Retailer
-
HK$18,755 HKD
A
Retailer 2
-
HK$22,580 HKD
View
A
Retailer 3
-
HK$22,642 HKD
View
B+
Retailer 4
-
HK$26,569 HKD
View
B+
Retailer 5
-
HK$26,976 HKD
View
Most Expensive
B
With Clarity
3545458575 · Nov 6
HK$35,715 HKD
$4,557 USD
View
5 more retailers have this diamond
Prices start from HK$18,755 HKDSave up to HK$16,960 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$18,755 HKD