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Cushion|Natural|GIA

0.80ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6535020878

Certificate GIA 6535020878

Diamond specifications and retailer prices

From HK$8,521 HKD
$1,086 USD
As of November 1, 2026
Save HK$5,603 HKD (40%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$17,518 HKD at MOH London · As of October 25, 2026
View at MOH London

About this 0.8ct natural cushion diamond

This 0.8ct natural cushion sits in the just-under-one-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 6535020878. Listed at 10 retailers as of October 31, 2026, with a 66% 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

0.80
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle54.2°
OriginNatural
Grading LabGIA
CertificateGIA 6535020878
Dimensions5.93 × 5.14 × 3.44 mm
L/W Ratio1.15
Top View
5.93 mm5.14 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535020878
Side View
Table 69.0%Crown 32.3°Girdle: MED-THKPavilion 54.2°Culet: NoneDepth 67.0%

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$17,518 HKD|Low: HK$6,592 HKD|High: HK$17,677 HKD|Avg: HK$10,700 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 3HK$6,592 HKD
Retailer 11HK$8,521 HKD
Retailer 9HK$8,811 HKD
Retailer 2HK$9,149 HKD
Retailer 6HK$9,383 HKD
Retailer 8HK$9,549 HKD
Retailer 10HK$10,247 HKD
Retailer 4HK$12,038 HKD
Retailer 5HK$13,346 HKD
Retailer 7HK$14,123 HKD
MOH LondonHK$17,518 HKD

21 data points across 11 retailers

10 retailersHK$8,521 HKD to HK$14,123 HKD

A
Cheapest Retailer
-
HK$8,521 HKD
$1,086 USD
A
Retailer 2
-
HK$8,811 HKD
$1,123 USD
View
Final sale: no returns
A
Retailer 3
-
HK$9,149 HKD
$1,166 USD
View
A
Retailer 4
-
HK$9,383 HKD
$1,196 USD
View
Retailer 5
-
HK$9,549 HKD
$1,217 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
HK$10,247 HKD
$1,306 USD
View
B+
Retailer 7
-
HK$12,038 HKD
£1,208 GBP
View
B+
Retailer 8
-
HK$13,346 HKD
€1,620 EUR
View
B+
Retailer 9
-
HK$14,123 HKD
ZAR 29,080 ZAR
View
Most Expensive
MOH London
3A452DFB8 · Oct 25
HK$17,518 HKD
£1,758 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from HK$8,521 HKDSave up to HK$5,603 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
0.80ct Cushion
HK$8,521 HKD