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Emerald|Lab Grown|IGI

1.50ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG700575878

Shape and cutting style on the report: Emerald cut

Certificate IGI LG700575878

Diamond specifications and retailer prices

From £231 GBP
As of November 6, 2026
Save £1,218 GBP (84%) vs most expensive(unlock to see where)
16 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 top-tier cut grade and certified by IGI LG700575878 or 700575878. Listed at 16 retailers as of November 4, 2026, with prices from £231 to £1,449, a £1,218 spread on the same certified stone. Brilliant Earth lists it at £1,449. 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

1.50
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.8°
Pavilion angle43.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700575878
Dimensions7.71 × 5.45 × 3.70 mm
L/W Ratio1.41
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.71 mm5.45 mm1.50 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700575878
Side View
Table 62.0%Crown 28.8°Girdle: MED-STKPavilion 43.4°Culet: LargeDepth 67.9%

Caratlytics Score

How it works →
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: Nov 6
Current: £1,449 GBP|Low: £222 GBP|High: £1,493 GBP|Avg: £645 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
November 6, 2026
Retailer 11£231 GBP
Retailer 3£258 GBP
Retailer 12£287 GBP
Retailer 13£287 GBP
Retailer 6£314 GBP
Retailer 8£401 GBP
Retailer 10£467 GBP
Retailer 14£478 GBP
Retailer 2£504 GBP
Retailer 9£880 GBP
Retailer 4£955 GBP
Retailer 7£1,145 GBP
Retailer 5£1,150 GBP
Brilliant Earth£1,449 GBP

45 data points across 14 retailers

16 retailers£231 GBP to £1,449 GBP

A
Cheapest Retailer
-
£231 GBP
A
Retailer 2
-
£258 GBP
View
Final sale: no returns
A
Retailer 3
-
£268 GBP
View
Retailer 4
-
£287 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£287 GBP
View
A
Retailer 6
-
£314 GBP
View
B+
Retailer 7
-
£401 GBP
View
B
Retailer 8
-
£467 GBP
View
B
Retailer 9
-
£478 GBP
View
B+
Retailer 10
-
£504 GBP
View
B
Retailer 11
-
£880 GBP
View
B
Retailer 12
-
£921 GBP
View
B
Retailer 13
-
£955 GBP
View
B
Retailer 14
-
£1,145 GBP
View
B
Retailer 15
-
£1,150 GBP
View
Most Expensive
B
Brilliant Earth
14466497A · Nov 4
£1,449 GBP
$1,950 USD
View
15 more retailers have this diamond
Prices start from £231 GBPSave up to £1,218 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
1.50ct Emerald
£231 GBP