CaratHunter
Plans
Round|Natural|GIA

1.23ct J VS1 Round Natural Diamond

EX • J/VS1 • GIA 7566152918

Certificate GIA 7566152918

Diamond specifications and retailer prices

From £1,707 GBP
As of November 6, 2026
Save £2,284 GBP (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,991 GBP at NZ Jewellers · As of November 5, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 7566152918. Listed at 21 retailers as of November 5, 2026, with prices from £1,707 to £3,991, a £2,284 spread on the same certified stone. NZ Jewellers lists it at £3,991. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7566152918
Dimensions6.86 × 6.88 × 4.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Key to symbols
Crystal, Twinning Wisp, Needle
Top View
6.86 mm6.88 mm1.23 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566152918
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

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 6
Current: £1,707 GBP|Low: £1,707 GBP|High: £3,877 GBP|Avg: £2,557 GBP|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£1,707 GBP
Retailer 8£2,115 GBP
Retailer 2£2,132 GBP
Retailer 3£2,353 GBP
Retailer 4£2,508 GBP
Retailer 9£2,574 GBP
Retailer 5£2,632 GBP
Retailer 6£2,796 GBP
Retailer 7£3,820 GBP

30 data points across 9 retailers

21 retailers£1,707 GBP to £3,991 GBP

A
Cheapest Retailer
-
£1,707 GBP
B+
Retailer 2
-
£2,051 GBP
View
B+
Retailer 3
-
£2,054 GBP
View
B+
Retailer 4
-
£2,115 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,132 GBP
View
Retailer 6
-
£2,291 GBP
View
Price last confirmed 44 days ago
B+
Retailer 7
-
£2,291 GBP
View
Retailer 8
-
£2,291 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£2,353 GBP
View
B+
Retailer 10
-
£2,379 GBP
View
B+
Retailer 11
-
£2,397 GBP
View
Retailer 12
-
£2,456 GBP
View
Price last confirmed 33 days ago
B+
Retailer 13
-
£2,508 GBP
View
Retailer 14
-
£2,574 GBP
View
Price last confirmed 17 days ago
B+
Retailer 15
-
£2,632 GBP
View
Retailer 16
-
£2,643 GBP
View
Price last confirmed 45 days ago
B
Retailer 17
-
£2,643 GBP
View
B+
Retailer 18
-
£2,796 GBP
View
B
Retailer 19
-
£3,820 GBP
View
Retailer 20
-
£3,991 GBP
View
Price last confirmed 46 days ago
Most Expensive
B
NZ Jewellers
2e5f1928-246e-4144-a84f-25f39161d647 · Nov 5
£3,991 GBP
$5,371 USD
View
20 more retailers have this diamond
Prices start from £1,707 GBPSave up to £2,284 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 Round
£1,707 GBP