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Princess|Lab Grown|IGI

1.71ct J SI1 Princess Lab Grown Diamond

ID • J/SI1 • IGI LG442068710

Shape and cutting style on the report: Princess cut

Certificate IGI LG442068710

Diamond specifications and retailer prices

From £716 GBP
$960 USD
As of October 30, 2026
Save £2,812 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,529 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.71ct lab-grown princess diamond

This 1.71ct lab-grown princess sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG442068710 or 442068710. Listed at 10 retailers as of October 27, 2026, with prices from £716 to £3,529, a £2,812 spread on the same certified stone. MOH London lists it at £3,529. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.71
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.5°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442068710
Dimensions6.64 × 6.54 × 4.50 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
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Top View
6.64 mm6.54 mm1.71 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG442068710
Side View
Table 70.5%Crown 45.5°Girdle: MediumPavilion 37.4°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
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: £3,529 GBP|Low: £716 GBP|High: £3,571 GBP|Avg: £1,768 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2£716 GBP
Retailer 3£946 GBP
Retailer 5£1,224 GBP
Retailer 7£1,523 GBP
Retailer 4£1,736 GBP
Retailer 6£2,044 GBP
MOH London£3,529 GBP

10 data points across 7 retailers

10 retailers£716 GBP to £3,529 GBP

A
Cheapest Retailer
-
£716 GBP
$960 USD
B+
Retailer 2
-
£946 GBP
$1,267 USD
View
A
Retailer 3
-
£1,028 GBP
$1,378 USD
View
B+
Retailer 4
-
£1,097 GBP
$1,470 USD
View
Retailer 5
-
£1,097 GBP
$1,470 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£1,224 GBP
$1,640 USD
View
B
Retailer 7
-
£1,736 GBP
$2,326 USD
View
B
Retailer 8
-
£2,044 GBP
$2,739 USD
View
B
Retailer 9
-
£2,055 GBP
$2,754 USD
View
Most Expensive
B
MOH London
LG442068710 · Oct 27
£3,529 GBP
View
9 more retailers have this diamond
Prices start from £716 GBPSave up to £2,812 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 Princess
£716 GBP