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Round|Natural|GIA

0.80ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2526637957

Certificate GIA 2526637957

Diamond specifications and retailer prices

From £429 GBP
As of November 5, 2026
Save £607 GBP (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,882 GBP at NZ Jewellers · As of October 3, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2526637957. Listed at 20 retailers as of November 2, 2026, with a 141% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2526637957
Dimensions5.92 × 5.86 × 3.73 mm
L/W Ratio1.01
Top View
5.92 mm5.86 mm0.80 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2526637957
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.3%

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 5
Current: £710 GBP|Low: £429 GBP|High: £1,112 GBP|Avg: £704 GBP|-7.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 12£429 GBP
Retailer 7£437 GBP
Retailer 14£470 GBP
Retailer 5£575 GBP
Retailer 4£593 GBP
Retailer 8£606 GBP
Retailer 2£664 GBP
Retailer 9£669 GBP
Retailer 11£684 GBP
Retailer 3£695 GBP
Retailer 1£710 GBP
Retailer 10£756 GBP
Retailer 6£800 GBP
Retailer 13£837 GBP
Retailer 15£1,036 GBP

23 data points across 15 retailers

20 retailers£429 GBP to £1,036 GBP

A
Cheapest Retailer
-
£429 GBP
A
Retailer 2
-
£437 GBP
View
A
Retailer 3
-
£470 GBP
View
A
Retailer 4
-
£575 GBP
View
A
Retailer 5
-
£593 GBP
View
Retailer 6
-
£598 GBP
View
Price last confirmed 30 days ago
Retailer 7
-
£600 GBP
View
Price last confirmed 26 days ago
A
Retailer 8
-
£606 GBP
View
A
Retailer 9
-
£664 GBP
View
A
Retailer 10
-
£669 GBP
View
A
Retailer 11
-
£684 GBP
View
Retailer 12
-
£692 GBP
View
Price last confirmed 44 days ago
B+
Retailer 13
-
£695 GBP
View
A
Retailer 14
-
£710 GBP
View
A
Retailer 15
-
£756 GBP
View
B+
Retailer 16
-
£800 GBP
View
B+
Retailer 17
-
£837 GBP
View
B+
Retailer 18
-
£1,036 GBP
View
Retailer 19
-
£1,882 GBP
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
d03117cc-e2ed-49ec-af9b-e2cd552ef7bb · Oct 3
£1,882 GBP
$2,533 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from £429 GBPSave up to £607 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
£429 GBP