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Radiant|Natural|GIA

1.05ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 2537447421

Certificate GIA 2537447421

Diamond specifications and retailer prices

From £1,809 GBP
$2,427 USD
As of November 1, 2026
Save £1,290 GBP (42%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,099 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 1.05ct natural radiant diamond

This 1.05ct natural radiant sits in the classic one-carat band, graded G 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 2537447421. Listed at 5 retailers as of November 1, 2026, with prices from £1,809 to £3,099, a £1,290 spread on the same certified stone. 77 Diamonds lists it at £3,099. 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

1.05
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2537447421
Dimensions7.39 × 5.05 × 3.41 mm
L/W Ratio1.46
Top View
7.39 mm5.05 mm1.05 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537447421
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £3,099 GBP|Low: £1,809 GBP|High: £3,111 GBP|Avg: £2,314 GBP|+2.1%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£1,809 GBP
Retailer 2£2,049 GBP
77 Diamonds£3,099 GBP

36 data points across 3 retailers

5 retailers£1,809 GBP to £3,099 GBP

A
Cheapest Retailer
-
£1,809 GBP
$2,427 USD
B+
Retailer 2
-
£2,019 GBP
$2,709 USD
View
B+
Retailer 3
-
£2,031 GBP
$2,725 USD
View
B+
Retailer 4
-
£2,049 GBP
$2,750 USD
View
Most Expensive
B
77 Diamonds
RADZBPBJXMNQ · Nov 2
£3,099 GBP
View
4 more retailers have this diamond
Prices start from £1,809 GBPSave up to £1,290 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
1.05ct Radiant
£1,809 GBP