CaratHunter
Plans
Emerald|Lab Grown|IGI

1.21ct D VS1 Emerald Lab Grown Diamond

ID • D/VS1 • IGI LG817679710

Shape and cutting style on the report: Emerald cut

Certificate IGI LG817679710

Diamond specifications and retailer prices

From £137 GBP
$183 USD
As of October 30, 2026
Save £715 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £851 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 LG817679710 or 817679710. Listed at 19 retailers as of October 30, 2026, with prices from £137 to £851, a £715 spread on the same certified stone. Reve Diamonds lists it at £851. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817679710
Dimensions7.15 × 5.05 × 3.48 mm
L/W Ratio1.42
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.15 mm5.05 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817679710
Side View
Table 60.0%Crown 39.4°Girdle: MediumPavilion 40.7°Culet: LargeDepth 68.9%

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: £307 GBP|Low: £131 GBP|High: £887 GBP|Avg: £453 GBP|+4.0%
Retailer 1
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
Reve Diamonds
October 31, 2026
Retailer 12£137 GBP
Retailer 4£152 GBP
Retailer 13£169 GBP
Retailer 15£169 GBP
Retailer 8£291 GBP
Retailer 14£300 GBP
Retailer 1£307 GBP
Retailer 3£354 GBP
Retailer 9£414 GBP
Retailer 2£555 GBP
Retailer 6£556 GBP
Retailer 11£576 GBP
Retailer 5£586 GBP
Retailer 10£794 GBP
Reve Diamonds£851 GBP
Retailer 7£887 GBP

45 data points across 16 retailers

19 retailers£137 GBP to £851 GBP

A
Cheapest Retailer
-
£137 GBP
$183 USD
A
Retailer 2
-
£152 GBP
$204 USD
View
Final sale: no returns
A
Retailer 3
-
£159 GBP
$213 USD
View
A
Retailer 4
-
£169 GBP
$227 USD
View
A
Retailer 5
-
£169 GBP
$227 USD
View
A
Retailer 6
-
£191 GBP
HK$2,000 HKD
View
A
Retailer 7
-
£291 GBP
ZAR 6,306 ZAR
View
A
Retailer 8
-
£300 GBP
$402 USD
View
A
Retailer 9
-
£307 GBP
View
A
Retailer 10
-
£343 GBP
$460 USD
View
A
Retailer 11
-
£354 GBP
$474 USD
View
B+
Retailer 12
-
£414 GBP
A$853 AUD
View
B+
Retailer 13
-
£546 GBP
$731 USD
View
B+
Retailer 14
-
£556 GBP
SGD 1,006 SGD
View
B+
Retailer 15
-
£566 GBP
$759 USD
View
B+
Retailer 16
-
£576 GBP
$772 USD
View
B+
Retailer 17
-
£586 GBP
$785 USD
View
B
Retailer 18
-
£794 GBP
View
Most Expensive
B
Reve Diamonds
FCA03CD10 · Oct 30
£851 GBP
$1,140 USD
View
18 more retailers have this diamond
Prices start from £137 GBPSave up to £715 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
£137 GBP