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Emerald|Lab Grown|IGI

1.23ct D SI2 Emerald Lab Grown Diamond

GD • D/SI2 • IGI LG683579499

Shape and cutting style on the report: Emerald cut

Certificate IGI LG683579499

Diamond specifications and retailer prices

From £172 GBP
$231 USD
As of October 30, 2026
Save £1,283 GBP (88%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,455 GBP at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.23ct lab-grown emerald diamond

This 1.23ct lab-grown emerald sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG683579499 or 683579499. Listed at 8 retailers as of October 30, 2026, with prices from £172 to £1,455, a £1,283 spread on the same certified stone. Do Amore Diamonds lists it at £1,455. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
D
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683579499
Dimensions7.34 × 4.95 × 3.40 mm
L/W Ratio1.48
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.34 mm4.95 mm1.23 ctD / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683579499
Side View
Table 62.0%Crown 38.7°Girdle: MediumPavilion 39.6°Culet: LargeDepth 68.7%

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: Oct 30
Current: £1,455 GBP|Low: £165 GBP|High: £3,022 GBP|Avg: £779 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 6£172 GBP
Retailer 9£199 GBP
Retailer 11£213 GBP
Retailer 7£361 GBP
Retailer 10£393 GBP
Retailer 12£458 GBP
Retailer 4£610 GBP
Retailer 5£688 GBP
Retailer 8£758 GBP
Retailer 2£944 GBP
Do Amore Diamonds£1,455 GBP
Retailer 3£3,022 GBP

14 data points across 12 retailers

8 retailers£172 GBP to £1,455 GBP

A
Cheapest Retailer
-
£172 GBP
$231 USD
B+
Retailer 2
-
£199 GBP
$267 USD
View
B+
Retailer 3
-
£361 GBP
$484 USD
View
B
Retailer 4
-
£393 GBP
$527 USD
View
C
Retailer 5
-
£688 GBP
$922 USD
View
C
Retailer 6
-
£758 GBP
$1,015 USD
View
B
Retailer 7
-
£944 GBP
View
Most Expensive
C
Do Amore Diamonds
7-1679784 · Nov 1
£1,455 GBP
$1,950 USD
View
7 more retailers have this diamond
Prices start from £172 GBPSave up to £1,283 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
£172 GBP