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Emerald|Lab Grown|IGI

1.21ct G VS1 Emerald Lab Grown Diamond

ID • G/VS1 • IGI LG770637299

Shape and cutting style on the report: Emerald cut

Certificate IGI LG770637299

Diamond specifications and retailer prices

From £120 GBP
$161 USD
As of October 30, 2026
Save £665 GBP (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £785 GBP at Flawless Fine Jewelry · As of October 31, 2026
View at Flawless Fine Jewelry

About this 1.21ct lab-grown emerald diamond

This 1.21ct lab-grown emerald sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG770637299 or 770637299. Listed at 20 retailers as of October 30, 2026, with prices from £120 to £785, a £665 spread on the same certified stone. Flawless Fine Jewelry lists it at £785. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770637299
Dimensions7.21 × 5.16 × 3.41 mm
L/W Ratio1.40
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.21 mm5.16 mm1.21 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770637299
Side View
Table 69.0%Crown 37.5°Girdle: MediumPavilion 40.5°Culet: LargeDepth 66.1%

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: £264 GBP|Low: £120 GBP|High: £707 GBP|Avg: £347 GBP|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 11£120 GBP
Retailer 2£149 GBP
Retailer 7£256 GBP
Retailer 5£260 GBP
Retailer 1£264 GBP
Retailer 3£270 GBP
Retailer 4£336 GBP
Retailer 8£364 GBP
Retailer 10£391 GBP
Retailer 9£463 GBP
Retailer 12£537 GBP
Retailer 6£702 GBP

45 data points across 12 retailers

20 retailers£120 GBP to £785 GBP

A
Cheapest Retailer
-
£120 GBP
$161 USD
A
Retailer 2
-
£140 GBP
$187 USD
View
A
Retailer 3
-
£149 GBP
$200 USD
View
A
Retailer 4
-
£149 GBP
$200 USD
View
A
Retailer 5
-
£256 GBP
ZAR 5,551 ZAR
View
A
Retailer 6
-
£260 GBP
€332 EUR
View
A
Retailer 7
-
£264 GBP
View
B+
Retailer 8
-
£270 GBP
$362 USD
View
A
Retailer 9
-
£320 GBP
$429 USD
View
A
Retailer 10
-
£336 GBP
$450 USD
View
A
Retailer 11
-
£364 GBP
A$750 AUD
View
B+
Retailer 12
-
£391 GBP
$524 USD
View
Retailer 13
-
£459 GBP
$615 USD
View
Price last confirmed 45 days ago
B+
Retailer 14
-
£463 GBP
$620 USD
View
B+
Retailer 15
-
£480 GBP
$643 USD
View
B
Retailer 16
-
£521 GBP
$698 USD
View
B
Retailer 17
-
£527 GBP
$706 USD
View
B+
Retailer 18
-
£537 GBP
$720 USD
View
B
Retailer 19
-
£702 GBP
View
Most Expensive
B
Flawless Fine Jewelry
9B4C6233A · Oct 31
£785 GBP
View
19 more retailers have this diamond
Prices start from £120 GBPSave up to £665 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
£120 GBP