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Cushion|Natural|GIA

1.30ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1558878113

Certificate GIA 1558878113

Diamond specifications and retailer prices

From HK$21,386 HKD
$2,726 USD
As of October 31, 2026
Save HK$25,438 HKD (54%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$46,823 HKD at MOH London · As of October 29, 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 1558878113. Listed at 6 retailers as of October 29, 2026, with prices from HK$21,386 to HK$46,823, a HK$25,438 spread on the same certified stone. MOH London lists it at HK$46,823. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558878113
Dimensions7.58 × 5.58 × 3.89 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.58 mm5.58 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 1558878113
Side View
Table 60.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.8%

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: Oct 31
Current: HK$46,823 HKD|Low: HK$17,125 HKD|High: HK$46,823 HKD|Avg: HK$28,360 HKD|+3.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5HK$21,386 HKD
Retailer 6HK$22,466 HKD
Retailer 3HK$29,107 HKD
Retailer 4HK$31,557 HKD
Retailer 2HK$32,599 HKD
MOH LondonHK$46,823 HKD

44 data points across 6 retailers

6 retailersHK$21,386 HKD to HK$46,823 HKD

A
Cheapest Retailer
-
HK$21,386 HKD
$2,726 USD
Retailer 2
-
HK$22,466 HKD
₹272,699 INR
View
Price last confirmed 18 days ago
B+
Retailer 3
-
HK$28,403 HKD
$3,620 USD
View
B
Retailer 4
-
HK$29,107 HKD
£2,921 GBP
View
B
Retailer 5
-
HK$32,599 HKD
€3,957 EUR
View
Most Expensive
B
MOH London
E77C6CB3A · Oct 29
HK$46,823 HKD
£4,699 GBP
View
5 more retailers have this diamond
Prices start from HK$21,386 HKDSave up to HK$25,438 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$21,386 HKD