Emerald|Lab Grown|IGI

1.21ct E IF Emerald Lab Grown Diamond

ID • E/IF • IGI LG747577640

Shape and cutting style on the report: Emerald cut

Certificate IGI LG747577640

Diamond specifications and retailer prices

From £144 GBP
$193 USD
As of October 30, 2026
Save £1,005 GBP (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,149 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.21ct lab-grown emerald diamond

This 1.21ct lab-grown emerald sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG747577640 or 747577640. Listed at 17 retailers as of October 28, 2026, with prices from £144 to £1,149, a £1,005 spread on the same certified stone. Rare Carat lists it at £1,149. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747577640
Dimensions6.91 × 4.95 × 3.51 mm
L/W Ratio1.40
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
6.91 mm4.95 mm1.21 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747577640
Side View
Table 63.0%Crown 39.6°Girdle: MediumPavilion 40°Culet: LargeDepth 70.9%

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: £1,149 GBP|Low: £138 GBP|High: £1,168 GBP|Avg: £416 GBP|-1.6%
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
Retailer 14
Retailer 15
October 30, 2026
Retailer 13£144 GBP
Retailer 6£161 GBP
Retailer 3£167 GBP
Retailer 12£178 GBP
Retailer 14£178 GBP
Retailer 4£248 GBP
Retailer 8£306 GBP
Retailer 2£325 GBP
Retailer 7£362 GBP
Retailer 9£435 GBP
Retailer 15£573 GBP
Retailer 11£575 GBP
Retailer 10£835 GBP
Retailer 5£874 GBP
Rare Carat£1,149 GBP

45 data points across 15 retailers

17 retailers£144 GBP to £1,149 GBP

A
Cheapest Retailer
-
£144 GBP
$193 USD
A
Retailer 2
-
£161 GBP
$216 USD
View
Final sale: no returns
A
Retailer 3
-
£167 GBP
$224 USD
View
A
Retailer 4
-
£178 GBP
$239 USD
View
A
Retailer 5
-
£178 GBP
$239 USD
View
B+
Retailer 6
-
£248 GBP
$332 USD
View
A
Retailer 7
-
£306 GBP
ZAR 6,632 ZAR
View
A
Retailer 8
-
£325 GBP
View
A
Retailer 9
-
£362 GBP
$485 USD
View
A
Retailer 10
-
£435 GBP
A$897 AUD
View
B+
Retailer 11
-
£572 GBP
$766 USD
View
B+
Retailer 12
-
£573 GBP
$768 USD
View
B+
Retailer 13
-
£575 GBP
$771 USD
View
B+
Retailer 14
-
£614 GBP
$822 USD
View
B+
Retailer 15
-
£835 GBP
View
B
Retailer 16
-
£874 GBP
$1,171 USD
View
Most Expensive
B
Rare Carat
SS19330_l_747577640 · Oct 28
£1,149 GBP
$1,540 USD
View
16 more retailers have this diamond
Prices start from £144 GBPSave up to £1,005 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
1.21ct Emerald
£144 GBP