Emerald|Lab Grown|IGI

17.21ct F VVS2 Emerald Lab Grown Diamond

ID • F/VVS2 • IGI LG675588136

Shape and cutting style on the report: Emerald cut

Certificate IGI LG675588136

Diamond specifications and retailer prices

From £5,283 GBP
CA$9,831 CAD
As of October 30, 2026
Save £11,672 GBP (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £26,383 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 17.21ct lab-grown emerald diamond

This 17.21ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG675588136 or 675588136. Listed at 14 retailers as of October 27, 2026, with a 221% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

17.21
Carat
F
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle44.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675588136
Dimensions17.85 × 12.15 × 7.96 mm
L/W Ratio1.47
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.85 mm12.15 mm17.21 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675588136
Side View
Table 69.0%Crown 40.2°Girdle: MediumPavilion 44.1°Culet: LargeDepth 65.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £26,383 GBP|Low: £5,009 GBP|High: £35,964 GBP|Avg: £14,593 GBP
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
November 1, 2026
Retailer 2£5,009 GBP
Retailer 14£5,283 GBP
Retailer 6£5,493 GBP
Retailer 3£5,706 GBP
Retailer 9£5,907 GBP
Retailer 5£6,459 GBP
Retailer 8£8,034 GBP
Retailer 10£10,093 GBP
Retailer 12£12,267 GBP
Retailer 11£12,439 GBP
Retailer 13£16,954 GBP
Retailer 15£21,687 GBP
Retailer 7£22,137 GBP
Brilliant Earth£26,383 GBP
Retailer 4£30,055 GBP

40 data points across 15 retailers

14 retailers£5,283 GBP to £16,954 GBP

B+
Cheapest Retailer
-
£5,283 GBP
CA$9,831 CAD
Retailer 2
-
£5,493 GBP
$7,360 USD
View
Price last confirmed 17 days ago
B+
Retailer 3
-
£5,706 GBP
$7,645 USD
View
B+
Retailer 4
-
£5,907 GBP
$7,915 USD
View
B
Retailer 5
-
£6,459 GBP
$8,655 USD
View
B+
Retailer 6
-
£8,034 GBP
View
B
Retailer 7
-
£10,093 GBP
ZAR 218,479 ZAR
View
B
Retailer 8
-
£12,267 GBP
$16,436 USD
View
Retailer 9
-
£12,439 GBP
A$25,641 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
£16,954 GBP
$22,717 USD
View
Retailer 11
-
£21,687 GBP
$29,059 USD
View
Price under review
Most Expensive
Brilliant Earth
16565054Y · Oct 31
£26,383 GBP
$35,350 USD
View
Price under review
11 more retailers have this diamond
Prices start from £5,283 GBPSave up to £11,672 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.

B+
17.21ct Emerald
£5,283 GBP