Round|Natural|GIA

0.80ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 3555160126

Certificate GIA 3555160126

Diamond specifications and retailer prices

From £523 GBP
As of November 6, 2026
Save £742 GBP (59%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,254 GBP at NZ Jewellers · As of September 21, 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 3555160126. Listed at 19 retailers as of November 2, 2026, with a 142% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3555160126
Dimensions5.89 × 5.93 × 3.72 mm
L/W Ratio1.01
Top View
5.89 mm5.93 mm0.80 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555160126
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £533 GBP|Low: £513 GBP|High: £1,306 GBP|Avg: £821 GBP|-5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10£523 GBP
Retailer 1£533 GBP
Retailer 7£596 GBP
Retailer 11£691 GBP
Retailer 2£722 GBP
Retailer 3£760 GBP
Retailer 5£782 GBP
Retailer 6£788 GBP
Retailer 8£970 GBP
Retailer 12£1,022 GBP
Retailer 4£1,060 GBP
Retailer 9£1,265 GBP

32 data points across 12 retailers

19 retailers£523 GBP to £1,265 GBP

A
Cheapest Retailer
-
£523 GBP
A
Retailer 2
-
£533 GBP
View
A
Retailer 3
-
£596 GBP
View
A
Retailer 4
-
£691 GBP
View
A
Retailer 5
-
£703 GBP
View
Retailer 6
-
£705 GBP
View
Price last confirmed 26 days ago
Retailer 7
-
£705 GBP
View
Price last confirmed 28 days ago
Retailer 8
-
£718 GBP
View
Price last confirmed 44 days ago
A
Retailer 9
-
£722 GBP
View
A
Retailer 10
-
£760 GBP
View
A
Retailer 11
-
£782 GBP
View
A
Retailer 12
-
£788 GBP
View
Retailer 13
-
£829 GBP
View
Price last confirmed 45 days ago
A
Retailer 14
-
£970 GBP
View
A
Retailer 15
-
£1,022 GBP
View
Retailer 16
-
£1,060 GBP
View
Price last confirmed 32 days ago
B+
Retailer 17
-
£1,265 GBP
View
Retailer 18
-
£2,210 GBP
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
cc6c8152-2fd2-408a-bef0-ab66a75fff5f · Sep 21
£2,254 GBP
$3,034 USD
View
Price last confirmed 45 days ago
18 more retailers have this diamond
Prices start from £523 GBPSave up to £742 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
£523 GBP