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Emerald|Lab Grown|IGI

1.23ct I VS1 Emerald Lab Grown Diamond

ID • I/VS1 • IGI LG500143699

Shape and cutting style on the report: Emerald cut

Certificate IGI LG500143699

Diamond specifications and retailer prices

From £605 GBP
$810 USD
As of October 31, 2026
Save £1,790 GBP (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,082 GBP at Flawless Fine Jewelry · As of October 31, 2026
View at Flawless Fine Jewelry

About this 1.23ct lab-grown emerald diamond

This 1.23ct lab-grown emerald sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG500143699 or 500143699. Listed at 13 retailers as of October 31, 2026, with a 296% 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
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle21.6°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500143699
Dimensions7.62 × 4.96 × 3.13 mm
L/W Ratio1.54
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.62 mm4.96 mm1.23 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500143699
Side View
Table 62.5%Crown 21.6°Girdle: MED-STKPavilion 36.6°Culet: LNGDepth 63.1%

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: Oct 31
Current: £3,082 GBP|Low: £605 GBP|High: £3,698 GBP|Avg: £1,923 GBP
Flawless Fine Jewelry
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
October 29, 2026
Retailer 11£605 GBP
Retailer 10£1,102 GBP
Retailer 16£1,199 GBP
Retailer 3£1,233 GBP
Retailer 12£1,278 GBP
Retailer 15£1,278 GBP
Retailer 5£1,407 GBP
Retailer 8£1,431 GBP
Retailer 6£1,724 GBP
Retailer 13£2,014 GBP
Retailer 4£2,319 GBP
Retailer 2£2,349 GBP
Retailer 14£2,395 GBP
Flawless Fine Jewelry£3,082 GBP
Retailer 7£3,659 GBP
Retailer 9£3,669 GBP

20 data points across 16 retailers

13 retailers£605 GBP to £2,395 GBP

B+
Cheapest Retailer
-
£605 GBP
$810 USD
B
Retailer 2
-
£1,102 GBP
$1,476 USD
View
B
Retailer 3
-
£1,199 GBP
$1,606 USD
View
B
Retailer 4
-
£1,233 GBP
$1,652 USD
View
Final sale: no returns
B
Retailer 5
-
£1,278 GBP
$1,712 USD
View
Retailer 6
-
£1,278 GBP
$1,712 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
£1,407 GBP
$1,885 USD
View
B
Retailer 8
-
£2,014 GBP
$2,699 USD
View
B
Retailer 9
-
£2,319 GBP
$3,107 USD
View
B
Retailer 10
-
£2,349 GBP
ZAR 50,848 ZAR
View
B
Retailer 11
-
£2,395 GBP
$3,209 USD
View
Most Expensive
Flawless Fine Jewelry
285158CCF · Oct 31
£3,082 GBP
View
Price under review
11 more retailers have this diamond
Prices start from £605 GBPSave up to £1,790 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 Emerald
£605 GBP