Round|Natural|GIA

1.23ct J IF Round Natural Diamond

EX • J/IF • GIA 6565071419

Certificate GIA 6565071419

Diamond specifications and retailer prices

From £2,197 GBP
HK$23,000 HKD
As of October 25, 2026
Save £2,764 GBP (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £5,742 GBP at NZ Jewellers · As of September 1, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6565071419. Listed at 24 retailers as of October 25, 2026, with a 126% 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565071419
Dimensions6.77 × 6.82 × 4.25 mm
L/W Ratio1.01
Top View
6.77 mm6.82 mm1.23 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565071419
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: £5,355 GBP|Low: £2,197 GBP|High: £5,452 GBP|Avg: £3,279 GBP|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 27, 2026
Retailer 10£2,197 GBP
Retailer 5£2,607 GBP
Retailer 18£2,657 GBP
Retailer 16£2,657 GBP
Retailer 22£2,658 GBP
Retailer 6£2,735 GBP
Retailer 9£2,791 GBP
Retailer 12£2,893 GBP
Retailer 7£2,963 GBP
Retailer 8£2,963 GBP
Retailer 21£2,963 GBP
Retailer 17£2,975 GBP
Retailer 19£3,072 GBP
Retailer 11£3,145 GBP
Retailer 4£3,172 GBP
Retailer 13£3,338 GBP
Retailer 15£3,355 GBP
Retailer 3£3,393 GBP
Retailer 14£3,547 GBP
Retailer 2£3,608 GBP
Retailer 20£4,961 GBP
NZ Jewellers£5,355 GBP

27 data points across 22 retailers

24 retailers£2,197 GBP to £4,961 GBP

A
Cheapest Retailer
-
£2,197 GBP
HK$23,000 HKD
A
Retailer 2
-
£2,607 GBP
$3,493 USD
View
A
Retailer 3
-
£2,657 GBP
$3,560 USD
View
A
Retailer 4
-
£2,657 GBP
View
A
Retailer 5
-
£2,658 GBP
$3,561 USD
View
B+
Retailer 6
-
£2,791 GBP
SGD 5,053 SGD
View
Retailer 7
-
£2,893 GBP
$3,876 USD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£2,963 GBP
$3,970 USD
View
B+
Retailer 9
-
£2,963 GBP
$3,970 USD
View
B+
Retailer 10
-
£2,963 GBP
$3,970 USD
View
B+
Retailer 11
-
£2,975 GBP
View
B+
Retailer 12
-
£3,072 GBP
$4,117 USD
View
Retailer 13
-
£3,073 GBP
$4,118 USD
View
Price last confirmed 25 days ago
Retailer 14
-
£3,145 GBP
$4,214 USD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
£3,172 GBP
$4,250 USD
View
B+
Retailer 16
-
£3,338 GBP
€4,260 EUR
View
Retailer 17
-
£3,355 GBP
A$6,916 AUD
View
Price last confirmed 28 days ago
B
Retailer 18
-
£3,393 GBP
View
Retailer 19
-
£3,547 GBP
$4,752 USD
View
Price last confirmed 25 days ago
B+
Retailer 20
-
£3,608 GBP
ZAR 78,093 ZAR
View
Retailer 21
-
£3,803 GBP
$5,095 USD
View
Price last confirmed 63 days ago
B
Retailer 22
-
£4,961 GBP
View
Retailer 23
-
£5,355 GBP
$7,175 USD
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
62d63c98-cf7f-43d0-b2b6-d252cb823c71 · Sep 1
£5,742 GBP
$7,693 USD
View
Price last confirmed 60 days ago
23 more retailers have this diamond
Prices start from £2,197 GBPSave up to £2,764 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
£2,197 GBP