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Round|Lab Grown|IGI

1.71ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG447098973

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447098973

Diamond specifications and retailer prices

From £940 GBP
$1,260 USD
As of October 29, 2026
Save £2,772 GBP (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,713 GBP at MOH London · As of October 25, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG447098973 or 447098973. Listed at 12 retailers as of October 25, 2026, with prices from £940 to £3,713, a £2,772 spread on the same certified stone. MOH London lists it at £3,713. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447098973
Dimensions7.64 × 7.62 × 4.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.64 mm7.62 mm1.71 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447098973
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.7%

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 29
Current: £3,713 GBP|Low: £896 GBP|High: £3,758 GBP|Avg: £1,858 GBP|+0.1%
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
October 29, 2026
Retailer 7£940 GBP
Retailer 9£1,119 GBP
Retailer 13£1,218 GBP
Retailer 12£1,254 GBP
Retailer 10£1,299 GBP
Retailer 5£1,425 GBP
Retailer 3£1,425 GBP
Retailer 4£1,763 GBP
Retailer 11£2,046 GBP
Retailer 8£2,296 GBP
Retailer 2£2,387 GBP
Retailer 14£2,434 GBP
Retailer 6£2,905 GBP
MOH London£3,713 GBP

20 data points across 14 retailers

12 retailers£940 GBP to £3,713 GBP

A
Cheapest Retailer
-
£940 GBP
$1,260 USD
A
Retailer 2
-
£1,119 GBP
$1,500 USD
View
A
Retailer 3
-
£1,218 GBP
$1,632 USD
View
B+
Retailer 4
-
£1,254 GBP
$1,680 USD
View
Final sale: no returns
Retailer 5
-
£1,299 GBP
$1,740 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£1,299 GBP
$1,740 USD
View
B+
Retailer 7
-
£1,425 GBP
$1,910 USD
View
B
Retailer 8
-
£2,046 GBP
$2,742 USD
View
B
Retailer 9
-
£2,296 GBP
$3,076 USD
View
B
Retailer 10
-
£2,387 GBP
ZAR 51,664 ZAR
View
B
Retailer 11
-
£2,434 GBP
$3,261 USD
View
Most Expensive
B
MOH London
LG447098973 · Oct 25
£3,713 GBP
View
11 more retailers have this diamond
Prices start from £940 GBPSave up to £2,772 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
£940 GBP