Round|Natural|GIA

0.80ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6565193831

Certificate GIA 6565193831

Diamond specifications and retailer prices

From £447 GBP
As of November 6, 2026
Save £651 GBP (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,000 GBP at NZ Jewellers · As of October 14, 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 6565193831. Listed at 20 retailers as of November 4, 2026, with a 146% 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565193831
Dimensions5.90 × 5.92 × 3.69 mm
L/W Ratio1.00
Top View
5.90 mm5.92 mm0.80 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565193831
Side View
Table 57.0%CrownGirdle: MED-SLIPavilionCulet: NoneDepth 62.4%

Caratlytics Score

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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: £752 GBP|Low: £447 GBP|High: £1,206 GBP|Avg: £735 GBP|-9.5%
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
November 6, 2026
Retailer 13£447 GBP
Retailer 2£539 GBP
Retailer 12£609 GBP
Retailer 4£613 GBP
Retailer 7£621 GBP
Retailer 5£672 GBP
Retailer 6£698 GBP
Retailer 8£707 GBP
Retailer 9£721 GBP
Retailer 1£752 GBP
Retailer 10£841 GBP
Retailer 11£887 GBP
Retailer 3£1,097 GBP

30 data points across 13 retailers

20 retailers£447 GBP to £1,097 GBP

A
Cheapest Retailer
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£447 GBP
A
Retailer 2
-
£539 GBP
View
A
Retailer 3
-
£609 GBP
View
A
Retailer 4
-
£613 GBP
View
A
Retailer 5
-
£621 GBP
View
Retailer 6
-
£638 GBP
View
Price last confirmed 21 days ago
Retailer 7
-
£638 GBP
View
Price last confirmed 23 days ago
Retailer 8
-
£663 GBP
View
Price last confirmed 22 days ago
B+
Retailer 9
-
£672 GBP
View
A
Retailer 10
-
£698 GBP
View
A
Retailer 11
-
£707 GBP
View
Retailer 12
-
£713 GBP
View
Price last confirmed 60 days ago
A
Retailer 13
-
£721 GBP
View
Retailer 14
-
£736 GBP
View
Price last confirmed 24 days ago
A
Retailer 15
-
£752 GBP
View
Retailer 16
-
£823 GBP
View
Price last confirmed 60 days ago
B+
Retailer 17
-
£841 GBP
View
B+
Retailer 18
-
£887 GBP
View
B+
Retailer 19
-
£1,097 GBP
View
Most Expensive
NZ Jewellers
62f47468-7804-4d49-9e27-47f98e1b114d · Oct 14
£2,000 GBP
$2,692 USD
View
Price last confirmed 23 days ago
19 more retailers have this diamond
Prices start from £447 GBPSave up to £651 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
£447 GBP