CaratHunter
Plans
Emerald|Lab Grown|IGI

1.64ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG731557360

Shape and cutting style on the report: Emerald cut

Certificate IGI LG731557360

Diamond specifications and retailer prices

From £200 GBP
$268 USD
As of October 30, 2026
Save £2,591 GBP (93%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,791 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.64ct lab-grown emerald diamond

This 1.64ct 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 LG731557360 or 731557360. Listed at 17 retailers as of October 29, 2026, with prices from £200 to £2,791, a £2,591 spread on the same certified stone. Brilliant Earth lists it at £2,791. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731557360
Dimensions7.83 × 5.56 × 3.90 mm
L/W Ratio1.41
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
7.83 mm5.56 mm1.64 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731557360
Side View
Table 59.0%Crown 33.2°Girdle: Slightly ThickPavilion 37.3°Culet: LNGDepth 70.1%

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 30
Current: £2,791 GBP|Low: £200 GBP|High: £2,873 GBP|Avg: £889 GBP|-2.9%
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
Retailer 16
Retailer 17
October 29, 2026
Retailer 9£200 GBP
Retailer 12£204 GBP
Retailer 6£237 GBP
Retailer 13£385 GBP
Retailer 17£388 GBP
Retailer 16£419 GBP
Retailer 2£465 GBP
Retailer 10£652 GBP
Retailer 7£690 GBP
Retailer 15£778 GBP
Retailer 4£804 GBP
Retailer 5£899 GBP
Retailer 3£1,121 GBP
Retailer 8£1,142 GBP
Retailer 14£1,814 GBP
Retailer 11£2,052 GBP
Brilliant Earth£2,791 GBP

28 data points across 17 retailers

17 retailers£200 GBP to £2,791 GBP

A
Cheapest Retailer
-
£200 GBP
$268 USD
Final sale: no returns
A
Retailer 2
-
£204 GBP
$274 USD
View
A
Retailer 3
-
£237 GBP
$317 USD
View
A
Retailer 4
-
£385 GBP
$516 USD
View
A
Retailer 5
-
£388 GBP
$520 USD
View
A
Retailer 6
-
£419 GBP
$562 USD
View
A
Retailer 7
-
£465 GBP
€594 EUR
View
A
Retailer 8
-
£652 GBP
A$1,343 AUD
View
A
Retailer 9
-
£690 GBP
$924 USD
View
B+
Retailer 10
-
£778 GBP
$1,042 USD
View
B+
Retailer 11
-
£804 GBP
$1,077 USD
View
B+
Retailer 12
-
£899 GBP
$1,204 USD
View
B+
Retailer 13
-
£1,121 GBP
View
Retailer 14
-
£1,142 GBP
A$2,354 AUD
View
Price last confirmed 22 days ago
B
Retailer 15
-
£1,814 GBP
$2,430 USD
View
B
Retailer 16
-
£2,052 GBP
$2,750 USD
View
Most Expensive
B
Brilliant Earth
15899009Y · Oct 29
£2,791 GBP
$3,740 USD
View
16 more retailers have this diamond
Prices start from £200 GBPSave up to £2,591 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
1.64ct Emerald
£200 GBP