CaratHunter
Plans
Round|Natural|GIA

1.23ct J VVS1 Round Natural Diamond

EX • J/VVS1 • GIA 2145871810

Certificate GIA 2145871810

Diamond specifications and retailer prices

From £2,563 GBP
As of November 6, 2026
Save £1,204 GBP (32%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,768 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

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 2145871810. Listed at 11 retailers as of November 6, 2026, with prices from £2,563 to £3,768, a £1,204 spread on the same certified stone. 77 Diamonds lists it at £3,768. 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
OriginNatural
Grading LabGIA
CertificateGIA 2145871810
Dimensions6.85 × 6.88 × 4.27 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.85 mm6.88 mm1.23 ctJ / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2145871810
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.2%

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 6
Current: £3,768 GBP|Low: £2,530 GBP|High: £3,853 GBP|Avg: £3,166 GBP|+0.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6£2,563 GBP
Retailer 10£2,580 GBP
Retailer 7£2,621 GBP
Retailer 3£2,757 GBP
Retailer 5£3,229 GBP
Retailer 4£3,308 GBP
Retailer 8£3,429 GBP
Retailer 9£3,429 GBP
Retailer 11£3,541 GBP
Retailer 2£3,550 GBP
77 Diamonds£3,768 GBP

38 data points across 11 retailers

11 retailers£2,563 GBP to £3,768 GBP

B+
Cheapest Retailer
-
£2,563 GBP
B+
Retailer 2
-
£2,580 GBP
View
B+
Retailer 3
-
£2,621 GBP
View
B+
Retailer 4
-
£2,757 GBP
View
B+
Retailer 5
-
£3,229 GBP
View
B
Retailer 6
-
£3,308 GBP
View
B
Retailer 7
-
£3,429 GBP
View
B
Retailer 8
-
£3,429 GBP
View
B
Retailer 9
-
£3,541 GBP
View
B
Retailer 10
-
£3,550 GBP
View
Most Expensive
B
77 Diamonds
RBZMQR2DBRW · Nov 6
£3,768 GBP
View
10 more retailers have this diamond
Prices start from £2,563 GBPSave up to £1,204 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
£2,563 GBP