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Cushion|Natural|GIA

0.80ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2556153957

Certificate GIA 2556153957

Diamond specifications and retailer prices

From $1,132 AUD
HK$6,200 HKD
As of November 1, 2026
Save $2,845 AUD (72%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,978 AUD at Queensmith · As of October 28, 2026
View at Queensmith

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 2556153957. Listed at 17 retailers as of October 28, 2026, with prices from $1,132 to $3,978, a $2,845 spread on the same certified stone. Queensmith lists it at $3,978. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556153957
Dimensions7.26 × 4.61 × 3.12 mm
L/W Ratio1.57
Top View
7.26 mm4.61 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556153957
Side View
Table 62.0%CrownGirdle: VTN-XTKPavilionCulet: NoneDepth 67.7%

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: $3,978 AUD|Low: $1,132 AUD|High: $3,987 AUD|Avg: $2,164 AUD|+3.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4$1,132 AUD
Retailer 2$1,321 AUD
Retailer 9$1,398 AUD
Retailer 7$1,517 AUD
Retailer 3$1,789 AUD
Retailer 10$1,983 AUD
Retailer 5$2,128 AUD
Retailer 6$2,243 AUD
Retailer 8$2,782 AUD
Queensmith$3,978 AUD

33 data points across 10 retailers

17 retailers$1,132 AUD to $3,978 AUD

A
Cheapest Retailer
-
$1,132 AUD
HK$6,200 HKD
A
Retailer 2
-
$1,321 AUD
₹88,191 INR
View
A
Retailer 3
-
$1,398 AUD
$980 USD
View
Final sale: no returns
A
Retailer 4
-
$1,453 AUD
$1,018 USD
View
A
Retailer 5
-
$1,455 AUD
$1,020 USD
View
A
Retailer 6
-
$1,517 AUD
$1,063 USD
View
A
Retailer 7
-
$1,569 AUD
SGD 1,486 SGD
View
B+
Retailer 8
-
$1,708 AUD
$1,197 USD
View
B+
Retailer 9
-
$1,789 AUD
£987 GBP
View
B+
Retailer 10
-
$1,839 AUD
$1,289 USD
View
B+
Retailer 11
-
$1,953 AUD
$1,369 USD
View
Retailer 12
-
$1,983 AUD
View
Price last confirmed 28 days ago
B+
Retailer 13
-
$2,128 AUD
€1,420 EUR
View
B+
Retailer 14
-
$2,243 AUD
ZAR 25,396 ZAR
View
B+
Retailer 15
-
$2,333 AUD
$1,635 USD
View
B+
Retailer 16
-
$2,782 AUD
£1,535 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Queensmith
2556153957 · Oct 28
$3,978 AUD
£2,195 GBP
View
16 more retailers have this diamond
Prices start from $1,132 AUDSave up to $2,845 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
$1,132 AUD