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Radiant|Natural|GIA

0.80ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 06

Certificate GIA 06

Diamond specifications and retailer prices

From £1,199 GBP
$1,607 USD
As of October 31, 2026
Save £254 GBP (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,453 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 0.8ct natural radiant diamond

This 0.8ct natural radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of October 31, 2026, with prices from £1,199 to £1,453, a £254 spread on the same certified stone. Blue Nile lists it at £1,453. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 06
Dimensions6.50 × 4.60 × 3.12 mm
L/W Ratio1.41
Top View
6.50 mm4.60 mm0.80 ctI / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 06
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,453 GBP|Low: £1,199 GBP|High: £1,453 GBP|Avg: £1,270 GBP
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2£1,199 GBP
Retailer 3£1,248 GBP
Blue Nile£1,453 GBP

2 data points across 3 retailers

3 retailers£1,199 GBP to £1,453 GBP

B+
Cheapest Retailer
-
£1,199 GBP
$1,607 USD
B+
Retailer 2
-
£1,248 GBP
$1,672 USD
View
Most Expensive
B
Blue Nile
14651095 · Oct 31
£1,453 GBP
$1,947 USD
View
2 more retailers have this diamond
Prices start from £1,199 GBPSave up to £254 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.

B+
0.80ct Radiant
£1,199 GBP