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Princess|Lab Grown|IGI

1.71ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG752562812

Shape and cutting style on the report: Princess cut

Certificate IGI LG752562812

Diamond specifications and retailer prices

From £242 GBP
$325 USD
As of November 2, 2026
Save £963 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,205 GBP at MOH London · As of November 3, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG752562812 or 752562812. Listed at 12 retailers as of November 2, 2026, with prices from £242 to £1,205, a £963 spread on the same certified stone. MOH London lists it at £1,205. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752562812
Dimensions6.78 × 6.67 × 4.57 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.78 mm6.67 mm1.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752562812
Side View
Table 70.0%Crown 38.3°Girdle: MediumPavilion 38.3°Culet: NoneDepth 68.5%

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: Nov 2
Current: £1,205 GBP|Low: £232 GBP|High: £1,220 GBP|Avg: £584 GBP|+4.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 7£242 GBP
Retailer 9£300 GBP
Retailer 11£300 GBP
Retailer 5£387 GBP
Retailer 4£414 GBP
Retailer 10£487 GBP
Retailer 3£498 GBP
Retailer 2£533 GBP
Retailer 6£882 GBP
Retailer 8£946 GBP
MOH London£1,205 GBP

43 data points across 11 retailers

12 retailers£242 GBP to £1,205 GBP

A
Cheapest Retailer
-
£242 GBP
$325 USD
A
Retailer 2
-
£281 GBP
$377 USD
View
A
Retailer 3
-
£300 GBP
$403 USD
View
Retailer 4
-
£300 GBP
$403 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£414 GBP
$555 USD
View
B+
Retailer 6
-
£487 GBP
$653 USD
View
B+
Retailer 7
-
£498 GBP
$668 USD
View
B+
Retailer 8
-
£533 GBP
View
B
Retailer 9
-
£882 GBP
$1,183 USD
View
B
Retailer 10
-
£946 GBP
$1,270 USD
View
B
Retailer 11
-
£967 GBP
$1,297 USD
View
Most Expensive
B
MOH London
LG752562812 · Nov 3
£1,205 GBP
View
11 more retailers have this diamond
Prices start from £242 GBPSave up to £963 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
£242 GBP