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Round|Natural|GIA

0.80ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6505740011

Certificate GIA 6505740011

Diamond specifications and retailer prices

From £860 GBP
As of November 5, 2026
Save £2,189 GBP (72%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,049 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6505740011. Listed at 21 retailers as of November 5, 2026, with prices from £860 to £3,049, a £2,189 spread on the same certified stone. NZ Jewellers lists it at £3,049. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6505740011
Dimensions6.00 × 5.93 × 3.63 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Top View
6.00 mm5.93 mm0.80 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6505740011
Side View
Table 57.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

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 5
Current: £1,379 GBP|Low: £855 GBP|High: £2,216 GBP|Avg: £1,456 GBP|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3£860 GBP
Retailer 6£979 GBP
Retailer 9£1,050 GBP
Retailer 8£1,199 GBP
Retailer 1£1,379 GBP
Retailer 4£1,577 GBP
Retailer 7£1,631 GBP
Retailer 2£1,849 GBP
Retailer 5£2,184 GBP

45 data points across 9 retailers

21 retailers£860 GBP to £3,049 GBP

A
Cheapest Retailer
-
£860 GBP
A
Retailer 2
-
£979 GBP
View
B+
Retailer 3
-
£1,018 GBP
View
B+
Retailer 4
-
£1,050 GBP
View
B+
Retailer 5
-
£1,082 GBP
View
Retailer 6
-
£1,133 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£1,133 GBP
View
B+
Retailer 8
-
£1,185 GBP
View
B+
Retailer 9
-
£1,199 GBP
View
B+
Retailer 10
-
£1,307 GBP
View
B
Retailer 11
-
£1,337 GBP
View
B
Retailer 12
-
£1,337 GBP
View
B
Retailer 13
-
£1,379 GBP
View
B
Retailer 14
-
£1,382 GBP
View
B+
Retailer 15
-
£1,422 GBP
View
B+
Retailer 16
-
£1,434 GBP
View
B+
Retailer 17
-
£1,577 GBP
View
Retailer 18
-
£1,631 GBP
View
Price last confirmed 32 days ago
B
Retailer 19
-
£1,849 GBP
View
B
Retailer 20
-
£2,184 GBP
View
Most Expensive
B
NZ Jewellers
5d76311d-2d68-49ab-82bd-e004cc0963ae · Nov 5
£3,049 GBP
$4,081 USD
View
20 more retailers have this diamond
Prices start from £860 GBPSave up to £2,189 GBP

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 Round
£860 GBP