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Princess|Lab Grown|IGI

1.71ct K SI1 Princess Lab Grown Diamond

ID • K/SI1 • IGI LG440012125

Shape and cutting style on the report: Princess cut

Certificate IGI LG440012125

Diamond specifications and retailer prices

From £769 GBP
As of November 6, 2026
Save £2,247 GBP (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,016 GBP at MOH London · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012125 or 440012125. Listed at 9 retailers as of November 5, 2026, with prices from £769 to £3,016, a £2,247 spread on the same certified stone. MOH London lists it at £3,016. 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
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012125
Dimensions6.43 × 6.43 × 4.75 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
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Top View
6.43 mm6.43 mm1.71 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012125
Side View
Table 73.5%Crown 42.6°Girdle: MediumPavilion 40.4°Culet: NoneDepth 73.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £3,016 GBP|Low: £769 GBP|High: £3,065 GBP|Avg: £1,811 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3£769 GBP
Retailer 2£1,022 GBP
Retailer 6£1,297 GBP
Retailer 4£1,423 GBP
Retailer 5£1,863 GBP
Retailer 7£2,553 GBP
MOH London£3,016 GBP

17 data points across 7 retailers

9 retailers£769 GBP to £3,016 GBP

A
Cheapest Retailer
-
£769 GBP
A
Retailer 2
-
£837 GBP
View
Retailer 3
-
£892 GBP
View
Price last confirmed 25 days ago
A
Retailer 4
-
£892 GBP
View
A
Retailer 5
-
£1,022 GBP
View
B+
Retailer 6
-
£1,423 GBP
View
B
Retailer 7
-
£1,671 GBP
View
B
Retailer 8
-
£1,863 GBP
View
Most Expensive
B
MOH London
LG440012125 · Nov 5
£3,016 GBP
View
8 more retailers have this diamond
Prices start from £769 GBPSave up to £2,247 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
£769 GBP