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Radiant|Natural|GIA

1.23ct J VVS1 Radiant Natural Diamond

ID • J/VVS1 • GIA 250000285799

Certificate GIA 250000285799

Diamond specifications and retailer prices

From £1,543 GBP
As of November 3, 2026
Save £1,682 GBP (52%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,225 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.23ct natural radiant diamond

This 1.23ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 250000285799. Listed at 4 retailers as of November 3, 2026, with prices from £1,543 to £3,225, a £1,682 spread on the same certified stone. NZ Jewellers lists it at £3,225. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
J
Colour
VVS1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.75°
Pavilion angle31.53°
OriginNatural
Grading LabGIA
CertificateGIA 250000285799
Dimensions6.88 × 5.35 × 3.62 mm
L/W Ratio1.29
Girdle conditionMedium
Top View
6.88 mm5.35 mm1.23 ctJ / VVS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 250000285799
Side View
Table 67.0%Crown 46.75°GirdlePavilion 31.53°Culet: NoneDepth 67.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £3,225 GBP|Low: £1,543 GBP|High: £3,225 GBP|Avg: £1,797 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
November 3, 2026
Retailer 2£1,543 GBP
Retailer 4£1,569 GBP
Retailer 3£1,614 GBP
NZ Jewellers£3,225 GBP

4 data points across 4 retailers

4 retailers£1,543 GBP to £3,225 GBP

A
Cheapest Retailer
-
£1,543 GBP
A
Retailer 2
-
£1,569 GBP
View
A
Retailer 3
-
£1,614 GBP
View
Most Expensive
B
NZ Jewellers
0212efd3-3964-46ee-b9f3-aba469e3f987 · Nov 3
£3,225 GBP
$4,317 USD
View
3 more retailers have this diamond
Prices start from £1,543 GBPSave up to £1,682 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
1.23ct Radiant
£1,543 GBP