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Round|Natural|GIA

1.23ct J VVS1 Round Natural Diamond

EX • J/VVS1 • GIA 7518062933

Certificate GIA 7518062933

Diamond specifications and retailer prices

From £2,854 GBP
As of November 4, 2026
Save £2,302 GBP (45%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £5,386 GBP at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round 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 and certified by GIA 7518062933. Listed at 6 retailers as of November 4, 2026, with a 81% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7518062933
Dimensions6.77 × 6.81 × 4.31 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Key to symbols
Pinpoint, Feather
Top View
6.77 mm6.81 mm1.23 ctJ / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7518062933
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.5%

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 4
Current: £3,520 GBP|Low: £2,257 GBP|High: £5,231 GBP|Avg: £3,526 GBP|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 4£2,854 GBP
Retailer 5£2,900 GBP
Retailer 3£3,316 GBP
Retailer 1£3,520 GBP
Retailer 2£5,156 GBP

24 data points across 5 retailers

6 retailers£2,854 GBP to £5,156 GBP

B+
Cheapest Retailer
-
£2,854 GBP
Final sale: no returns
B+
Retailer 2
-
£2,900 GBP
View
B+
Retailer 3
-
£3,316 GBP
View
B+
Retailer 4
-
£3,520 GBP
View
B
Retailer 5
-
£5,156 GBP
View
Most Expensive
NZ Jewellers
b668ce39-20d2-4cc8-8e28-acff7efd98af · Oct 3
£5,386 GBP
$7,209 USD
View
Price last confirmed 34 days ago
5 more retailers have this diamond
Prices start from £2,854 GBPSave up to £2,302 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 Round
£2,854 GBP