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Radiant|Natural|GIA

1.23ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 1395568013

Certificate GIA 1395568013

Diamond specifications and retailer prices

From £3,600 GBP
As of November 6, 2026
Save £1,353 GBP (27%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £4,953 GBP at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 1.23ct natural radiant diamond

This 1.23ct natural radiant sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1395568013. Listed at 3 retailers as of November 5, 2026, with prices from £3,600 to £4,953, a £1,353 spread on the same certified stone. 77 Diamonds lists it at £4,953. 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

1.23
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1395568013
Dimensions6.51 × 5.20 × 3.82 mm
L/W Ratio1.25
Top View
6.51 mm5.20 mm1.23 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1395568013
Side View
Table 68.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 73.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £4,953 GBP|Low: £3,600 GBP|High: £5,032 GBP|Avg: £4,298 GBP|+0.8%
77 Diamonds
Retailer 2
November 5, 2026
Retailer 2£3,600 GBP
77 Diamonds£4,953 GBP

32 data points across 2 retailers

3 retailers£3,600 GBP to £4,953 GBP

B
Cheapest Retailer
-
£3,600 GBP
B
Retailer 2
-
£3,795 GBP
View
Most Expensive
B
77 Diamonds
RADMBYBNMMM2F · Nov 5
£4,953 GBP
View
2 more retailers have this diamond
Prices start from £3,600 GBPSave up to £1,353 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
1.23ct Radiant
£3,600 GBP