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Radiant|Natural|GIA

0.83ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2457398628

Certificate GIA 2457398628

Diamond specifications and retailer prices

From £1,358 GBP
$1,820 USD
As of November 1, 2026
Save £2,112 GBP (61%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,470 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.83ct natural radiant diamond

This 0.83ct 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 2457398628. Listed at 17 retailers as of October 30, 2026, with prices from £1,358 to £3,470, a £2,112 spread on the same certified stone. NZ Jewellers lists it at £3,470. 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

0.83
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2457398628
Dimensions6.48 × 4.89 × 3.28 mm
L/W Ratio1.33
Top View
6.48 mm4.89 mm0.83 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2457398628
Side View
Table 69.0%CrownGirdle: Very ThinPavilionCulet: NoneDepth 67.1%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £3,470 GBP|Low: £1,358 GBP|High: £3,470 GBP|Avg: £1,997 GBP
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
November 1, 2026
Retailer 5£1,358 GBP
Retailer 3£1,377 GBP
Retailer 12£1,504 GBP
Retailer 14£1,504 GBP
Retailer 13£1,573 GBP
Retailer 7£1,602 GBP
Retailer 4£1,705 GBP
Retailer 15£1,735 GBP
Retailer 9£1,822 GBP
Retailer 6£2,041 GBP
Retailer 11£2,073 GBP
Retailer 2£2,093 GBP
Retailer 10£2,472 GBP
Retailer 8£2,908 GBP
NZ Jewellers£3,470 GBP

30 data points across 15 retailers

17 retailers£1,358 GBP to £3,470 GBP

B+
Cheapest Retailer
-
£1,358 GBP
$1,820 USD
B+
Retailer 2
-
£1,377 GBP
$1,845 USD
View
B+
Retailer 3
-
£1,481 GBP
$1,984 USD
View
B+
Retailer 4
-
£1,504 GBP
$2,015 USD
View
B+
Retailer 5
-
£1,504 GBP
$2,015 USD
View
B
Retailer 6
-
£1,549 GBP
$2,076 USD
View
B
Retailer 7
-
£1,573 GBP
$2,108 USD
View
B
Retailer 8
-
£1,602 GBP
$2,147 USD
View
B
Retailer 9
-
£1,705 GBP
$2,285 USD
View
B
Retailer 10
-
£1,735 GBP
$2,325 USD
View
B
Retailer 11
-
£1,822 GBP
View
Retailer 12
-
£2,041 GBP
A$4,208 AUD
View
Price last confirmed 26 days ago
B
Retailer 13
-
£2,073 GBP
€2,645 EUR
View
B
Retailer 14
-
£2,093 GBP
View
B
Retailer 15
-
£2,472 GBP
ZAR 53,519 ZAR
View
B
Retailer 16
-
£2,908 GBP
View
Most Expensive
B
NZ Jewellers
87de0d4c-219a-4859-b998-2ce1d0763371 · Oct 30
£3,470 GBP
$4,650 USD
View
16 more retailers have this diamond
Prices start from £1,358 GBPSave up to £2,112 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+
0.83ct Radiant
£1,358 GBP