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Emerald|Lab Grown|IGI

1.51ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG731580881

Shape and cutting style on the report: Emerald cut

Certificate IGI LG731580881

Diamond specifications and retailer prices

From £181 GBP
$242 USD
As of October 30, 2026
Save £1,767 GBP (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,948 GBP at Brilliant Earth · As of October 31, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731580881 or 731580881. Listed at 24 retailers as of October 30, 2026, with prices from £181 to £1,948, a £1,767 spread on the same certified stone. Brilliant Earth lists it at £1,948. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.9°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731580881
Dimensions8.07 × 5.41 × 3.62 mm
L/W Ratio1.49
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
8.07 mm5.41 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731580881
Side View
Table 64.0%Crown 29.9°Girdle: MediumPavilion 40.1°Culet: LargeDepth 66.9%

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: Oct 30
Current: £1,948 GBP|Low: £174 GBP|High: £3,247 GBP|Avg: £771 GBP|-40.0%
Brilliant Earth
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November 1, 2026
Retailer 23£181 GBP
Retailer 21£210 GBP
Retailer 20£213 GBP
Retailer 4£224 GBP
Retailer 14£344 GBP
Retailer 6£351 GBP
Retailer 13£411 GBP
Retailer 11£411 GBP
Retailer 18£425 GBP
Retailer 2£474 GBP
Retailer 12£550 GBP
Retailer 19£575 GBP
Retailer 7£580 GBP
Retailer 5£723 GBP
Retailer 24£796 GBP
Retailer 9£911 GBP
Retailer 16£921 GBP
Retailer 17£990 GBP
Retailer 8£990 GBP
Retailer 22£997 GBP
Retailer 15£1,051 GBP
Retailer 3£1,661 GBP
Retailer 10£1,739 GBP
Brilliant Earth£1,948 GBP

37 data points across 24 retailers

24 retailers£181 GBP to £1,948 GBP

A
Cheapest Retailer
-
£181 GBP
$242 USD
A
Retailer 2
-
£210 GBP
$281 USD
View
A
Retailer 3
-
£213 GBP
$285 USD
View
Final sale: no returns
A
Retailer 4
-
£224 GBP
$300 USD
View
A
Retailer 5
-
£344 GBP
HK$3,600 HKD
View
A
Retailer 6
-
£351 GBP
$470 USD
View
A
Retailer 7
-
£411 GBP
€524 EUR
View
A
Retailer 8
-
£411 GBP
$551 USD
View
A
Retailer 9
-
£425 GBP
ZAR 9,202 ZAR
View
A
Retailer 10
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£474 GBP
View
A
Retailer 11
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£550 GBP
$737 USD
View
A
Retailer 12
-
£575 GBP
A$1,186 AUD
View
A
Retailer 13
-
£580 GBP
$777 USD
View
B+
Retailer 14
-
£723 GBP
$969 USD
View
B+
Retailer 15
-
£796 GBP
$1,066 USD
View
B+
Retailer 16
-
£911 GBP
$1,221 USD
View
B+
Retailer 17
-
£921 GBP
$1,234 USD
View
B+
Retailer 18
-
£990 GBP
SGD 1,792 SGD
View
B+
Retailer 19
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£990 GBP
$1,327 USD
View
Retailer 20
-
£997 GBP
View
Price last confirmed 13 days ago
Retailer 21
-
£1,051 GBP
A$2,167 AUD
View
Price last confirmed 29 days ago
B
Retailer 22
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£1,661 GBP
$2,225 USD
View
B
Retailer 23
-
£1,739 GBP
$2,330 USD
View
Most Expensive
B
Brilliant Earth
16223753Y · Oct 31
£1,948 GBP
$2,610 USD
View
23 more retailers have this diamond
Prices start from £181 GBPSave up to £1,767 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
£181 GBP