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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 $1,550 AUD
$1,086 USD
As of November 1, 2026
Save $1,019 AUD (40%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,186 AUD 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: $3,186 AUD|Low: $1,199 AUD|High: $3,215 AUD|Avg: $1,946 AUD|-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 3$1,199 AUD
Retailer 11$1,550 AUD
Retailer 9$1,602 AUD
Retailer 2$1,664 AUD
Retailer 6$1,706 AUD
Retailer 8$1,737 AUD
Retailer 10$1,864 AUD
Retailer 4$2,189 AUD
Retailer 5$2,427 AUD
Retailer 7$2,568 AUD
MOH London$3,186 AUD

21 data points across 11 retailers

10 retailers$1,550 AUD to $2,568 AUD

A
Cheapest Retailer
-
$1,550 AUD
$1,086 USD
A
Retailer 2
-
$1,602 AUD
$1,123 USD
View
Final sale: no returns
A
Retailer 3
-
$1,664 AUD
$1,166 USD
View
A
Retailer 4
-
$1,706 AUD
$1,196 USD
View
Retailer 5
-
$1,737 AUD
$1,217 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,864 AUD
$1,306 USD
View
B+
Retailer 7
-
$2,189 AUD
£1,208 GBP
View
B+
Retailer 8
-
$2,427 AUD
€1,620 EUR
View
B+
Retailer 9
-
$2,568 AUD
ZAR 29,080 ZAR
View
Most Expensive
MOH London
3A452DFB8 · Oct 25
$3,186 AUD
£1,758 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $1,550 AUDSave up to $1,019 AUD

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
$1,550 AUD