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Emerald|Lab Grown|IGI

1.51ct E FL Emerald Lab Grown Diamond

EX • E/FL • IGI LG780663551

Shape and cutting style on the report: Emerald cut

Certificate IGI LG780663551

Diamond specifications and retailer prices

From £490 GBP
HK$5,100 HKD
As of October 29, 2026
Save £2,378 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,869 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.51ct lab-grown emerald diamond

This 1.51ct lab-grown emerald sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663551 or 780663551. Listed at 13 retailers as of October 29, 2026, with prices from £490 to £2,869, a £2,378 spread on the same certified stone. Brilliant Earth lists it at £2,869. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663551
Dimensions7.61 × 5.38 × 3.65 mm
L/W Ratio1.41
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
7.61 mm5.38 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663551
Side View
Table 62.0%Crown 32.8°Girdle: Slightly ThickPavilion 40.2°Culet: LargeDepth 67.8%

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 29
Current: £2,869 GBP|Low: £278 GBP|High: £2,869 GBP|Avg: £1,039 GBP
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
October 29, 2026
Retailer 6£278 GBP
Retailer 10£490 GBP
Retailer 4£604 GBP
Retailer 12£605 GBP
Retailer 7£660 GBP
Retailer 2£706 GBP
Retailer 8£735 GBP
Retailer 3£805 GBP
Retailer 14£998 GBP
Retailer 13£1,398 GBP
Retailer 5£1,474 GBP
Retailer 9£1,573 GBP
Retailer 11£1,600 GBP
Brilliant Earth£2,869 GBP

41 data points across 14 retailers

13 retailers£490 GBP to £2,869 GBP

A
Cheapest Retailer
-
£490 GBP
HK$5,100 HKD
A
Retailer 2
-
£604 GBP
$805 USD
View
A
Retailer 3
-
£605 GBP
$806 USD
View
A
Retailer 4
-
£660 GBP
€837 EUR
View
A
Retailer 5
-
£706 GBP
View
A
Retailer 6
-
£735 GBP
ZAR 15,810 ZAR
View
B+
Retailer 7
-
£805 GBP
$1,072 USD
View
B+
Retailer 8
-
£998 GBP
$1,329 USD
View
B
Retailer 9
-
£1,398 GBP
$1,862 USD
View
B
Retailer 10
-
£1,474 GBP
$1,963 USD
View
B
Retailer 11
-
£1,573 GBP
View
B
Retailer 12
-
£1,600 GBP
$2,131 USD
View
Most Expensive
B
Brilliant Earth
19088160A · Oct 29
£2,869 GBP
$3,820 USD
View
12 more retailers have this diamond
Prices start from £490 GBPSave up to £2,378 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
1.51ct Emerald
£490 GBP