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Round|Lab Grown|IGI

1.71ct J VS2 Round Lab Grown Diamond

EX • J/VS2 • IGI LG451057247

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057247

Diamond specifications and retailer prices

From £761 GBP
$1,020 USD
As of October 30, 2026
Save £2,709 GBP (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,470 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG451057247 or 451057247. Listed at 12 retailers as of October 29, 2026, with prices from £761 to £3,470, a £2,709 spread on the same certified stone. MOH London lists it at £3,470. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
J
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057247
Dimensions7.79 × 7.73 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.79 mm7.73 mm1.71 ctJ / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057247
Side View
Table 60.0%Crown 31.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 59.3%

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: £3,470 GBP|Low: £761 GBP|High: £3,498 GBP|Avg: £1,797 GBP|+0.5%
MOH London
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
Retailer 16
October 30, 2026
Retailer 2£761 GBP
Retailer 10£1,042 GBP
Retailer 13£1,134 GBP
Retailer 15£1,166 GBP
Retailer 11£1,208 GBP
Retailer 16£1,208 GBP
Retailer 3£1,336 GBP
Retailer 9£1,514 GBP
Retailer 7£1,602 GBP
Retailer 5£1,656 GBP
Retailer 12£1,908 GBP
Retailer 4£2,193 GBP
Retailer 14£2,265 GBP
Retailer 8£2,705 GBP
Retailer 6£3,460 GBP
MOH London£3,470 GBP

25 data points across 16 retailers

12 retailers£761 GBP to £3,470 GBP

A
Cheapest Retailer
-
£761 GBP
$1,020 USD
A
Retailer 2
-
£1,042 GBP
$1,396 USD
View
A
Retailer 3
-
£1,134 GBP
$1,519 USD
View
A
Retailer 4
-
£1,166 GBP
$1,562 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,208 GBP
$1,619 USD
View
Retailer 6
-
£1,208 GBP
$1,619 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
£1,336 GBP
$1,790 USD
View
B+
Retailer 8
-
£1,514 GBP
View
B
Retailer 9
-
£1,908 GBP
$2,557 USD
View
B
Retailer 10
-
£2,193 GBP
$2,939 USD
View
B
Retailer 11
-
£2,265 GBP
$3,035 USD
View
Most Expensive
B
MOH London
LG451057247 · Oct 29
£3,470 GBP
View
11 more retailers have this diamond
Prices start from £761 GBPSave up to £2,709 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
1.71ct Round
£761 GBP