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Emerald|Lab Grown|IGI

1.50ct E IF Emerald Lab Grown Diamond

ID • E/IF • IGI LG666428557

Shape and cutting style on the report: Emerald cut

Certificate IGI LG666428557

Diamond specifications and retailer prices

From £241 GBP
$323 USD
As of October 30, 2026
Save £1,420 GBP (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,661 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG666428557 or 666428557. Listed at 24 retailers as of October 28, 2026, with prices from £241 to £1,661, a £1,420 spread on the same certified stone. Rare Carat lists it at £1,661. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG666428557
Dimensions7.81 × 5.30 × 3.57 mm
L/W Ratio1.47
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
7.81 mm5.30 mm1.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG666428557
Side View
Table 63.0%Crown 37.8°Girdle: MediumPavilion 39.3°Culet: LNGDepth 67.4%

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: Oct 30
Current: £1,661 GBP|Low: £241 GBP|High: £1,683 GBP|Avg: £607 GBP|-1.3%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 5£241 GBP
Retailer 13£268 GBP
Retailer 11£369 GBP
Retailer 2£439 GBP
Retailer 7£447 GBP
Retailer 10£460 GBP
Retailer 4£461 GBP
Retailer 6£473 GBP
Retailer 9£622 GBP
Retailer 12£822 GBP
Retailer 3£959 GBP
Retailer 8£1,079 GBP
Rare Carat£1,661 GBP

43 data points across 13 retailers

24 retailers£241 GBP to £1,661 GBP

Retailer 1
-
£216 GBP
$289 USD
Price last confirmed 30 days ago
A
Retailer 2
-
£241 GBP
$323 USD
View
Final sale: no returns
Retailer 3
-
£251 GBP
$336 USD
View
Price last confirmed 35 days ago
Retailer 4
-
£264 GBP
$354 USD
View
Price last confirmed 31 days ago
A
Retailer 5
-
£268 GBP
$359 USD
View
A
Retailer 6
-
£296 GBP
HK$3,100 HKD
View
A
Retailer 7
-
£369 GBP
$495 USD
View
A
Retailer 8
-
£439 GBP
$588 USD
View
A
Retailer 9
-
£447 GBP
€571 EUR
View
A
Retailer 10
-
£460 GBP
ZAR 9,956 ZAR
View
A
Retailer 11
-
£461 GBP
$618 USD
View
A
Retailer 12
-
£473 GBP
View
A
Retailer 13
-
£622 GBP
A$1,283 AUD
View
B+
Retailer 14
-
£747 GBP
$1,001 USD
View
B+
Retailer 15
-
£822 GBP
$1,102 USD
View
B+
Retailer 16
-
£859 GBP
SGD 1,556 SGD
View
Retailer 17
-
£861 GBP
$1,153 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
£897 GBP
$1,202 USD
View
B+
Retailer 19
-
£959 GBP
$1,285 USD
View
B+
Retailer 20
-
£1,029 GBP
$1,379 USD
View
B+
Retailer 21
-
£1,046 GBP
View
B+
Retailer 22
-
£1,079 GBP
View
B+
Retailer 23
-
£1,103 GBP
$1,478 USD
View
Most Expensive
B
Rare Carat
200E56-1A · Oct 28
£1,661 GBP
$2,225 USD
View
23 more retailers have this diamond
Prices start from £241 GBPSave up to £1,420 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
£241 GBP