CaratHunter
Plans
Emerald|Natural|GIA

1.23ct J SI2 Emerald Natural Diamond

EX • J/SI2 • GIA 2566443740

Certificate GIA 2566443740

Diamond specifications and retailer prices

From £1,135 GBP
As of November 4, 2026
Save £1,865 GBP (62%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,000 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural emerald diamond

This 1.23ct natural emerald sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566443740. Listed at 12 retailers as of November 4, 2026, with prices from £1,135 to £3,000, a £1,865 spread on the same certified stone. NZ Jewellers lists it at £3,000. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.23
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566443740
Dimensions7.14 × 5.10 × 3.36 mm
L/W Ratio1.40
Culet sizeNone
Top View
7.14 mm5.10 mm1.23 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566443740
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 65.9%

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 4
Current: £3,000 GBP|Low: £1,025 GBP|High: £3,000 GBP|Avg: £1,436 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11£1,031 GBP
Retailer 8£1,135 GBP
Retailer 12£1,196 GBP
Retailer 2£1,225 GBP
Retailer 7£1,230 GBP
Retailer 9£1,287 GBP
Retailer 5£1,365 GBP
Retailer 6£1,419 GBP
Retailer 4£1,427 GBP
Retailer 3£1,501 GBP
Retailer 10£1,744 GBP
NZ Jewellers£3,000 GBP

18 data points across 12 retailers

12 retailers£1,135 GBP to £3,000 GBP

Retailer 1
-
£1,031 GBP
Price last confirmed 9 days ago
A
Retailer 2
-
£1,135 GBP
View
Final sale: no returns
Retailer 3
-
£1,196 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£1,225 GBP
View
B+
Retailer 5
-
£1,230 GBP
View
B+
Retailer 6
-
£1,287 GBP
View
B+
Retailer 7
-
£1,365 GBP
View
B+
Retailer 8
-
£1,419 GBP
View
Retailer 9
-
£1,427 GBP
View
Price last confirmed 8 days ago
Retailer 10
-
£1,501 GBP
View
Price last confirmed 8 days ago
Retailer 11
-
£1,744 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
6feccb7d-2144-44d8-990e-231dc3b678ed · Nov 5
£3,000 GBP
$4,038 USD
View
11 more retailers have this diamond
Prices start from £1,135 GBPSave up to £1,865 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 Emerald
£1,135 GBP