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Cushion|Natural|GIA

1.30ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 6435484641

Certificate GIA 6435484641

Diamond specifications and retailer prices

From HK$15,567 HKD
As of November 1, 2026
Save HK$19,399 HKD (55%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$34,966 HKD at MOH London · As of November 2, 2026
View at MOH London

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 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 6435484641. Listed at 23 retailers as of November 1, 2026, with prices from HK$15,567 to HK$34,966, a HK$19,399 spread on the same certified stone. MOH London lists it at HK$34,966. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle57.65°
OriginNatural
Grading LabGIA
CertificateGIA 6435484641
Dimensions6.24 × 5.92 × 4.14 mm
L/W Ratio1.05
Top View
6.24 mm5.92 mm1.30 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6435484641
Side View
Table 64.0%Crown 38.5°Girdle: STK-VTKPavilion 57.65°Culet: NoneDepth 69.9%

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 1
Current: HK$34,966 HKD|Low: HK$15,567 HKD|High: HK$35,394 HKD|Avg: HK$21,658 HKD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7HK$15,567 HKD
Retailer 2HK$15,712 HKD
Retailer 11HK$17,720 HKD
Retailer 3HK$18,415 HKD
Retailer 4HK$19,468 HKD
Retailer 10HK$19,772 HKD
Retailer 9HK$20,055 HKD
Retailer 6HK$21,330 HKD
Retailer 8HK$24,533 HKD
Retailer 5HK$24,913 HKD
MOH LondonHK$34,966 HKD

26 data points across 11 retailers

23 retailersHK$15,567 HKD to HK$34,966 HKD

A
Cheapest Retailer
-
HK$15,567 HKD
A
Retailer 2
-
HK$15,712 HKD
₹190,716 INR
View
A
Retailer 3
-
HK$17,673 HKD
A$3,465 AUD
View
A
Retailer 4
-
HK$17,720 HKD
SGD 3,052 SGD
View
A
Retailer 5
-
HK$17,913 HKD
$2,283 USD
View
A
Retailer 6
-
HK$18,030 HKD
$2,298 USD
View
A
Retailer 7
-
HK$18,415 HKD
$2,347 USD
View
Final sale: no returns
A
Retailer 8
-
HK$19,468 HKD
£1,954 GBP
View
A
Retailer 9
-
HK$19,772 HKD
$2,520 USD
View
A
Retailer 10
-
HK$19,960 HKD
$2,544 USD
View
A
Retailer 11
-
HK$20,055 HKD
$2,556 USD
View
A
Retailer 12
-
HK$21,062 HKD
$2,684 USD
View
A
Retailer 13
-
HK$21,330 HKD
£2,141 GBP
View
A
Retailer 14
-
HK$21,608 HKD
$2,754 USD
View
A
Retailer 15
-
HK$21,686 HKD
SGD 3,735 SGD
View
A
Retailer 16
-
HK$21,734 HKD
$2,770 USD
View
A
Retailer 17
-
HK$22,061 HKD
$2,812 USD
View
Retailer 18
-
HK$22,363 HKD
A$4,385 AUD
View
Price last confirmed 25 days ago
B+
Retailer 19
-
HK$24,533 HKD
ZAR 50,513 ZAR
View
B+
Retailer 20
-
HK$24,913 HKD
€3,024 EUR
View
B
Retailer 21
-
HK$29,337 HKD
$3,739 USD
View
B
Retailer 22
-
HK$30,159 HKD
$3,844 USD
View
Most Expensive
B
MOH London
C75FA4012 · Nov 2
HK$34,966 HKD
£3,509 GBP
View
22 more retailers have this diamond
Prices start from HK$15,567 HKDSave up to HK$19,399 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$15,567 HKD