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Emerald|Lab Grown|IGI

1.21ct D VS1 Emerald Lab Grown Diamond

EX • D/VS1 • IGI LG819623723

Shape and cutting style on the report: Emerald cut

Certificate IGI LG819623723

Diamond specifications and retailer prices

From £228 GBP
$305 USD
As of October 30, 2026
Save £735 GBP (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £963 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.21ct lab-grown emerald diamond

This 1.21ct lab-grown emerald sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG819623723 or 819623723. Listed at 14 retailers as of October 28, 2026, with prices from £228 to £963, a £735 spread on the same certified stone. Brilliant Earth lists it at £963. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819623723
Dimensions6.99 × 4.96 × 3.39 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
6.99 mm4.96 mm1.21 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819623723
Side View
Table 64.0%Crown 36°Girdle: MED-STKPavilion 37.3°Culet: LargeDepth 68.3%

Caratlytics Score

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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: £963 GBP|Low: £169 GBP|High: £993 GBP|Avg: £453 GBP|-3.0%
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
November 1, 2026
Retailer 13£169 GBP
Retailer 3£228 GBP
Retailer 8£279 GBP
Retailer 11£292 GBP
Retailer 2£307 GBP
Retailer 5£343 GBP
Retailer 14£354 GBP
Retailer 7£399 GBP
Retailer 12£508 GBP
Retailer 10£512 GBP
Retailer 4£549 GBP
Retailer 6£586 GBP
Retailer 9£798 GBP
Brilliant Earth£963 GBP

44 data points across 14 retailers

14 retailers£228 GBP to £963 GBP

Retailer 1
-
£169 GBP
$227 USD
Price last confirmed 16 days ago
B+
Retailer 2
-
£228 GBP
$305 USD
View
A
Retailer 3
-
£279 GBP
€356 EUR
View
A
Retailer 4
-
£292 GBP
ZAR 6,311 ZAR
View
A
Retailer 5
-
£307 GBP
View
A
Retailer 6
-
£343 GBP
$460 USD
View
A
Retailer 7
-
£354 GBP
$474 USD
View
B+
Retailer 8
-
£399 GBP
$535 USD
View
B+
Retailer 9
-
£508 GBP
$680 USD
View
B+
Retailer 10
-
£512 GBP
A$1,056 AUD
View
B+
Retailer 11
-
£560 GBP
$750 USD
View
B
Retailer 12
-
£586 GBP
$785 USD
View
B
Retailer 13
-
£798 GBP
View
Most Expensive
B
Brilliant Earth
20754535A · Oct 28
£963 GBP
$1,290 USD
View
13 more retailers have this diamond
Prices start from £228 GBPSave up to £735 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
£228 GBP