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Emerald|Lab Grown|IGI

1.50ct D SI1 Emerald Lab Grown Diamond

GD • D/SI1 • IGI LG560246399

Shape and cutting style on the report: Emerald cut

Certificate IGI LG560246399

Diamond specifications and retailer prices

From £150 GBP
As of November 6, 2026
Save £1,299 GBP (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,449 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.5ct lab-grown emerald diamond

This 1.5ct lab-grown emerald sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG560246399 or 560246399. Listed at 15 retailers as of November 4, 2026, with prices from £150 to £1,449, a £1,299 spread on the same certified stone. Brilliant Earth lists it at £1,449. 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

1.50
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.7°
Pavilion angle43.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG560246399
Dimensions7.67 × 5.40 × 3.79 mm
L/W Ratio1.42
Culet sizeLong
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
7.67 mm5.40 mm1.50 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG560246399
Side View
Table 73.5%Crown 39.7°Girdle: Slightly ThickPavilion 43.6°Culet: LNGDepth 70.2%

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 6
Current: £1,449 GBP|Low: £144 GBP|High: £1,493 GBP|Avg: £478 GBP|-3.0%
Brilliant Earth
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
November 6, 2026
Retailer 11£150 GBP
Retailer 5£167 GBP
Retailer 6£175 GBP
Retailer 12£186 GBP
Retailer 15£186 GBP
Retailer 13£253 GBP
Retailer 9£304 GBP
Retailer 2£339 GBP
Retailer 3£377 GBP
Retailer 14£600 GBP
Retailer 10£602 GBP
Retailer 7£639 GBP
Retailer 8£869 GBP
Retailer 4£892 GBP
Brilliant Earth£1,449 GBP

45 data points across 15 retailers

15 retailers£150 GBP to £1,449 GBP

B+
Cheapest Retailer
-
£150 GBP
B+
Retailer 2
-
£167 GBP
View
Final sale: no returns
B+
Retailer 3
-
£175 GBP
View
B+
Retailer 4
-
£186 GBP
View
Retailer 5
-
£186 GBP
View
Price last confirmed 12 days ago
B
Retailer 6
-
£253 GBP
View
Retailer 7
-
£304 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£339 GBP
View
B+
Retailer 9
-
£377 GBP
View
B
Retailer 10
-
£600 GBP
View
B
Retailer 11
-
£602 GBP
View
B
Retailer 12
-
£639 GBP
View
B
Retailer 13
-
£869 GBP
View
C
Retailer 14
-
£892 GBP
View
Most Expensive
C
Brilliant Earth
16084759A · Nov 4
£1,449 GBP
$1,950 USD
View
14 more retailers have this diamond
Prices start from £150 GBPSave up to £1,299 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+
1.50ct Emerald
£150 GBP