CaratHunter
Plans
Round|Natural|GIA

1.23ct J VVS1 Round Natural Diamond

EX • J/VVS1 • GIA 3565796998

Certificate GIA 3565796998

Diamond specifications and retailer prices

From £2,602 GBP
As of November 4, 2026
Save £2,061 GBP (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,663 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg 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 3565796998. Listed at 13 retailers as of November 4, 2026, with prices from £2,602 to £4,663, a £2,061 spread on the same certified stone. Helzberg Diamonds lists it at £4,663. 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 angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3565796998
Dimensions6.89 × 6.94 × 4.23 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.89 mm6.94 mm1.23 ctJ / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565796998
Side View
Table 59.0%Crown 34°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 61.2%

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 4
Current: £4,663 GBP|Low: £2,602 GBP|High: £4,663 GBP|Avg: £3,447 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11£2,602 GBP
Retailer 13£2,625 GBP
Retailer 7£2,781 GBP
Retailer 5£2,841 GBP
Retailer 6£2,984 GBP
Retailer 10£3,130 GBP
Retailer 8£3,332 GBP
Retailer 4£3,339 GBP
Retailer 9£3,482 GBP
Retailer 2£3,610 GBP
Retailer 12£4,389 GBP
Retailer 3£4,657 GBP
Helzberg Diamonds£4,663 GBP

4 data points across 13 retailers

13 retailers£2,602 GBP to £4,663 GBP

B+
Cheapest Retailer
-
£2,602 GBP
B+
Retailer 2
-
£2,625 GBP
View
B+
Retailer 3
-
£2,781 GBP
View
B+
Retailer 4
-
£2,841 GBP
View
B+
Retailer 5
-
£2,984 GBP
View
B+
Retailer 6
-
£3,130 GBP
View
B
Retailer 7
-
£3,332 GBP
View
B
Retailer 8
-
£3,339 GBP
View
B
Retailer 9
-
£3,482 GBP
View
B
Retailer 10
-
£3,610 GBP
View
B
Retailer 11
-
£4,389 GBP
View
B
Retailer 12
-
£4,657 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRJLMLNPMPPO · Nov 6
£4,663 GBP
$6,242 USD
View
12 more retailers have this diamond
Prices start from £2,602 GBPSave up to £2,061 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
£2,602 GBP