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Round|Natural|GIA

0.80ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1565258810

Certificate GIA 1565258810

Diamond specifications and retailer prices

From £509 GBP
As of November 5, 2026
Save £1,639 GBP (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,148 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565258810. Listed at 18 retailers as of November 5, 2026, with prices from £509 to £2,148, a £1,639 spread on the same certified stone. NZ Jewellers lists it at £2,148. 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
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1565258810
Dimensions5.92 × 5.90 × 3.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
5.92 mm5.90 mm0.80 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565258810
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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: £2,148 GBP|Low: £509 GBP|High: £2,206 GBP|Avg: £870 GBP|-2.6%
NZ Jewellers
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 12£509 GBP
Retailer 6£513 GBP
Retailer 15£617 GBP
Retailer 13£649 GBP
Retailer 17£671 GBP
Retailer 9£685 GBP
Retailer 7£699 GBP
Retailer 4£711 GBP
Retailer 10£715 GBP
Retailer 3£791 GBP
Retailer 14£796 GBP
Retailer 11£820 GBP
Retailer 2£858 GBP
Retailer 5£894 GBP
Retailer 16£975 GBP
Retailer 8£1,253 GBP
NZ Jewellers£2,148 GBP

20 data points across 17 retailers

18 retailers£509 GBP to £2,148 GBP

A
Cheapest Retailer
-
£509 GBP
A
Retailer 2
-
£513 GBP
View
A
Retailer 3
-
£617 GBP
View
A
Retailer 4
-
£649 GBP
View
B+
Retailer 5
-
£671 GBP
View
A
Retailer 6
-
£685 GBP
View
A
Retailer 7
-
£690 GBP
View
A
Retailer 8
-
£699 GBP
View
A
Retailer 9
-
£711 GBP
View
A
Retailer 10
-
£715 GBP
View
A
Retailer 11
-
£791 GBP
View
A
Retailer 12
-
£796 GBP
View
B+
Retailer 13
-
£820 GBP
View
B+
Retailer 14
-
£858 GBP
View
B+
Retailer 15
-
£894 GBP
View
B+
Retailer 16
-
£975 GBP
View
B
Retailer 17
-
£1,253 GBP
View
Most Expensive
B
NZ Jewellers
214b6b38-044e-4aa1-9cbc-ba5cf0d2e0ac · Nov 5
£2,148 GBP
$2,891 USD
View
17 more retailers have this diamond
Prices start from £509 GBPSave up to £1,639 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
£509 GBP