Cushion|Natural|GIA

0.80ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6535020878

Certificate GIA 6535020878

Diamond specifications and retailer prices

From $1,086 USD
As of November 1, 2026
Save $714 USD (40%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,233 USD 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
Color
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: $2,233 USD|Low: $826 USD|High: $2,253 USD|Avg: $1,279 USD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 5$826 USD
Retailer 3$840 USD
Retailer 4$890 USD
Retailer 13$1,086 USD
Retailer 11$1,123 USD
Retailer 2$1,166 USD
Retailer 8$1,196 USD
Retailer 10$1,217 USD
Retailer 12$1,306 USD
Retailer 9$1,539 USD
Retailer 6$1,702 USD
Retailer 7$1,800 USD
MOH London$2,233 USD

20 data points across 13 retailers

10 retailers$1,086 USD to $1,800 USD

A
Cheapest Retailer
-
$1,086 USD
A
Retailer 2
-
$1,123 USD
View
Final sale: no returns
A
Retailer 3
-
$1,166 USD
View
A
Retailer 4
-
$1,196 USD
View
Retailer 5
-
$1,217 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$1,306 USD
View
B+
Retailer 7
-
$1,539 USD
£1,212 GBP
View
B+
Retailer 8
-
$1,702 USD
€1,621 EUR
View
B+
Retailer 9
-
$1,800 USD
ZAR 29,080 ZAR
View
Most Expensive
MOH London
3A452DFB8 · Oct 25
$2,233 USD
£1,758 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $1,086 USDSave up to $714 USD

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
$1,086 USD