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Round|Lab Grown|IGI

3.51ct G VS2 Round Lab Grown Diamond

EX • G/VS2 • IGI LG617401790

Shape and cutting style on the report: Round brilliant

Certificate IGI LG617401790

Diamond specifications and retailer prices

From £905 GBP
$1,212 USD
As of October 30, 2026
Save £2,218 GBP (71%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,123 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.51ct lab-grown round diamond

This 3.51ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG617401790 or 617401790. Listed at 4 retailers as of October 30, 2026, with prices from £905 to £3,123, a £2,218 spread on the same certified stone. The Diamond Guys lists it at £3,123. 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

3.51
Carat
G
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617401790
Dimensions9.75 × 9.72 × 5.90 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.75 mm9.72 mm3.51 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617401790
Side View
Table 61.0%Crown 33.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.6%

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: £720 GBP|Low: £720 GBP|High: £4,911 GBP|Avg: £1,920 GBP|-6.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
The Diamond Guys
September 19, 2026
Retailer 1£720 GBP
Retailer 4£720 GBP
Retailer 3£905 GBP
Retailer 2£1,054 GBP
Retailer 7£1,525 GBP
Retailer 5£1,770 GBP
Retailer 6£2,529 GBP
The Diamond Guys£3,123 GBP
Retailer 8£4,911 GBP

4 data points across 9 retailers

4 retailers£905 GBP to £3,123 GBP

A
Cheapest Retailer
-
£905 GBP
$1,212 USD
Retailer 2
-
£1,525 GBP
$2,044 USD
View
Price last confirmed 43 days ago
B
Retailer 3
-
£1,770 GBP
CA$3,294 CAD
View
Most Expensive
B
The Diamond Guys
1977146849 · Oct 30
£3,123 GBP
$4,184 USD
View
3 more retailers have this diamond
Prices start from £905 GBPSave up to £2,218 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
3.51ct Round
£905 GBP