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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 €673 EUR
HK$5,900 HKD
As of November 1, 2026
Save €1,074 EUR (61%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €2,269 EUR 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 November 1, 2026, with a 159% 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

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 1
Current: €1,747 EUR|Low: €662 EUR|High: €1,780 EUR|Avg: €1,070 EUR|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 11€673 EUR
Retailer 10€859 EUR
Retailer 2€874 EUR
Retailer 15€881 EUR
Retailer 3€914 EUR
Retailer 6€931 EUR
Retailer 9€936 EUR
Retailer 5€1,067 EUR
Retailer 7€1,076 EUR
Retailer 12€1,079 EUR
Retailer 14€1,165 EUR
Retailer 8€1,255 EUR
Retailer 4€1,372 EUR
Retailer 13€1,411 EUR
Retailer 1€1,747 EUR

25 data points across 15 retailers

18 retailers€673 EUR to €1,747 EUR

A
Cheapest Retailer
-
€673 EUR
HK$5,900 HKD
A
Retailer 2
-
€859 EUR
View
A
Retailer 3
-
€874 EUR
$980 USD
View
A
Retailer 4
-
€881 EUR
$988 USD
View
Final sale: no returns
A
Retailer 5
-
€914 EUR
$1,025 USD
View
Retailer 6
-
€931 EUR
SGD 1,411 SGD
View
Price last confirmed 10 days ago
A
Retailer 7
-
€936 EUR
£827 GBP
View
A
Retailer 8
-
€1,067 EUR
$1,197 USD
View
A
Retailer 9
-
€1,076 EUR
$1,207 USD
View
A
Retailer 10
-
€1,079 EUR
$1,210 USD
View
A
Retailer 11
-
€1,165 EUR
£1,028 GBP
View
Retailer 12
-
€1,201 EUR
A$2,072 AUD
View
Price last confirmed 28 days ago
A
Retailer 13
-
€1,204 EUR
A$2,078 AUD
View
A
Retailer 14
-
€1,255 EUR
View
Retailer 15
-
€1,372 EUR
$1,539 USD
View
Price last confirmed 10 days ago
B+
Retailer 16
-
€1,411 EUR
ZAR 25,571 ZAR
View
B+
Retailer 17
-
€1,747 EUR
£1,543 GBP
View
Most Expensive
NZ Jewellers
1862c4d9-25a5-443f-b5c6-4326c55f4676 · Sep 25
€2,269 EUR
$2,545 USD
View
Price last confirmed 38 days ago
17 more retailers have this diamond
Prices start from €673 EURSave up to €1,074 EUR

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
€673 EUR