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Princess|Lab Grown|IGI

1.51ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG559282838

Shape and cutting style on the report: Princess cut

Certificate IGI LG559282838

Diamond specifications and retailer prices

From £179 GBP
$240 USD
As of October 30, 2026
Save £714 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £893 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1.51ct lab-grown princess diamond

This 1.51ct lab-grown princess sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG559282838 or 559282838. Listed at 12 retailers as of October 25, 2026, with prices from £179 to £893, a £714 spread on the same certified stone. MOH London lists it at £893. 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

1.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.8°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559282838
Dimensions6.17 × 6.16 × 4.27 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.17 mm6.16 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559282838
Side View
Table 70.5%Crown 48.8°Girdle: MED-STKPavilion 36°Culet: NoneDepth 69.3%

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: £893 GBP|Low: £172 GBP|High: £924 GBP|Avg: £456 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
October 31, 2026
Retailer 6£179 GBP
Retailer 8£222 GBP
Retailer 11£222 GBP
Retailer 4£248 GBP
Retailer 9£375 GBP
Retailer 2£421 GBP
Retailer 3£466 GBP
Retailer 10£715 GBP
Retailer 5£717 GBP
Retailer 7£776 GBP
MOH London£893 GBP

44 data points across 11 retailers

12 retailers£179 GBP to £893 GBP

A
Cheapest Retailer
-
£179 GBP
$240 USD
A
Retailer 2
-
£222 GBP
$298 USD
View
A
Retailer 3
-
£222 GBP
$298 USD
View
A
Retailer 4
-
£248 GBP
View
B+
Retailer 5
-
£375 GBP
$502 USD
View
B+
Retailer 6
-
£378 GBP
$507 USD
View
B+
Retailer 7
-
£421 GBP
View
B+
Retailer 8
-
£466 GBP
$624 USD
View
B
Retailer 9
-
£715 GBP
$958 USD
View
B
Retailer 10
-
£717 GBP
$961 USD
View
Retailer 11
-
£776 GBP
$1,040 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
LG559282838 · Oct 25
£893 GBP
View
11 more retailers have this diamond
Prices start from £179 GBPSave up to £714 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
1.51ct Princess
£179 GBP