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Round|Lab Grown|IGI

1.71ct J VS2 Round Lab Grown Diamond

VG • J/VS2 • IGI LG451055573

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055573

Diamond specifications and retailer prices

From £702 GBP
$940 USD
As of October 30, 2026
Save £2,768 GBP (80%) vs most expensive(unlock to see where)
11 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 very-good cut grade and certified by IGI LG451055573 or 451055573. Listed at 11 retailers as of October 29, 2026, with prices from £702 to £3,470, a £2,768 spread on the same certified stone. MOH London lists it at £3,470. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
J
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055573
Dimensions7.62 × 7.57 × 4.65 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.62 mm7.57 mm1.71 ctJ / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055573
Side View
Table 61.5%Crown 35.3°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 61.2%

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: £702 GBP|High: £3,493 GBP|Avg: £1,698 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
October 30, 2026
Retailer 2£702 GBP
Retailer 7£1,042 GBP
Retailer 11£1,134 GBP
Retailer 10£1,167 GBP
Retailer 8£1,208 GBP
Retailer 6£1,336 GBP
Retailer 4£1,352 GBP
Retailer 3£1,656 GBP
Retailer 9£1,908 GBP
Retailer 13£2,193 GBP
Retailer 12£2,265 GBP
Retailer 5£2,705 GBP
MOH London£3,470 GBP

16 data points across 13 retailers

11 retailers£702 GBP to £3,470 GBP

A
Cheapest Retailer
-
£702 GBP
$940 USD
B+
Retailer 2
-
£1,042 GBP
$1,396 USD
View
B+
Retailer 3
-
£1,134 GBP
$1,519 USD
View
B+
Retailer 4
-
£1,167 GBP
$1,563 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
-
£1,908 GBP
$2,557 USD
View
B
Retailer 9
-
£2,193 GBP
$2,939 USD
View
B
Retailer 10
-
£2,265 GBP
$3,035 USD
View
Most Expensive
B
MOH London
LG451055573 · Oct 29
£3,470 GBP
View
10 more retailers have this diamond
Prices start from £702 GBPSave up to £2,768 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
£702 GBP