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Radiant|Natural|GIA

0.80ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 6551379258

Certificate GIA 6551379258

Diamond specifications and retailer prices

From £564 GBP
HK$5,900 HKD
As of November 1, 2026
Save £833 GBP (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,899 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.8ct natural radiant diamond

This 0.8ct natural radiant sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551379258. Listed at 18 retailers as of October 29, 2026, with a 148% 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551379258
Dimensions6.41 × 4.68 × 3.09 mm
L/W Ratio1.37
Girdle conditionPolished
Top View
6.41 mm4.68 mm0.80 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551379258
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 66.1%

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 1
Current: £1,051 GBP|Low: £554 GBP|High: £1,490 GBP|Avg: £895 GBP|-0.9%
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 2, 2026
Retailer 10£564 GBP
Retailer 9£719 GBP
Retailer 2£731 GBP
Retailer 14£737 GBP
Retailer 3£765 GBP
Retailer 6£779 GBP
Retailer 8£784 GBP
Retailer 5£893 GBP
Retailer 7£901 GBP
Retailer 11£903 GBP
Retailer 13£975 GBP
Retailer 1£1,051 GBP
Retailer 4£1,149 GBP
Retailer 12£1,181 GBP
Retailer 15£1,397 GBP

25 data points across 15 retailers

18 retailers£564 GBP to £1,397 GBP

A
Cheapest Retailer
-
£564 GBP
HK$5,900 HKD
A
Retailer 2
-
£719 GBP
€918 EUR
View
A
Retailer 3
-
£731 GBP
$980 USD
View
A
Retailer 4
-
£737 GBP
$988 USD
View
Final sale: no returns
A
Retailer 5
-
£765 GBP
$1,025 USD
View
Retailer 6
-
£779 GBP
SGD 1,411 SGD
View
Price last confirmed 10 days ago
A
Retailer 7
-
£784 GBP
View
A
Retailer 8
-
£893 GBP
$1,197 USD
View
A
Retailer 9
-
£901 GBP
$1,207 USD
View
A
Retailer 10
-
£903 GBP
$1,210 USD
View
A
Retailer 11
-
£975 GBP
View
Retailer 12
-
£1,005 GBP
A$2,072 AUD
View
Price last confirmed 28 days ago
A
Retailer 13
-
£1,008 GBP
A$2,078 AUD
View
A
Retailer 14
-
£1,051 GBP
€1,341 EUR
View
Retailer 15
-
£1,149 GBP
$1,539 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
£1,181 GBP
ZAR 25,571 ZAR
View
B+
Retailer 17
-
£1,397 GBP
View
Most Expensive
NZ Jewellers
1862c4d9-25a5-443f-b5c6-4326c55f4676 · Sep 25
£1,899 GBP
$2,545 USD
View
Price last confirmed 38 days ago
17 more retailers have this diamond
Prices start from £564 GBPSave up to £833 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 Radiant
£564 GBP