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Princess|Lab Grown|IGI

1.51ct J SI1 Princess Lab Grown Diamond

GD • J/SI1 • IGI LG447000695

Shape and cutting style on the report: Princess cut

Certificate IGI LG447000695

Diamond specifications and retailer prices

From £1,082 GBP
$1,450 USD
As of October 30, 2026
Save £2,503 GBP (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,586 GBP at MOH London · As of November 1, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG447000695 or 447000695. Listed at 10 retailers as of October 30, 2026, with prices from £1,082 to £3,586, a £2,503 spread on the same certified stone. MOH London lists it at £3,586. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447000695
Dimensions6.49 × 6.31 × 4.37 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
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Top View
6.49 mm6.31 mm1.51 ctJ / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447000695
Side View
Table 71.0%Crown 42°Girdle: Slightly ThickPavilion 37.9°Culet: NoneDepth 69.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,586 GBP|Low: £1,082 GBP|High: £3,628 GBP|Avg: £1,987 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 3£1,082 GBP
Retailer 5£1,212 GBP
Retailer 8£1,238 GBP
Retailer 10£1,380 GBP
Retailer 2£1,384 GBP
Retailer 7£1,706 GBP
Retailer 4£1,980 GBP
Retailer 6£2,279 GBP
MOH London£3,586 GBP
Retailer 9£3,594 GBP

16 data points across 10 retailers

10 retailers£1,082 GBP to £3,586 GBP

B+
Cheapest Retailer
-
£1,082 GBP
$1,450 USD
B+
Retailer 2
-
£1,178 GBP
$1,578 USD
View
B+
Retailer 3
-
£1,212 GBP
$1,624 USD
View
Final sale: no returns
B+
Retailer 4
-
£1,255 GBP
$1,682 USD
View
Retailer 5
-
£1,255 GBP
$1,682 USD
View
Price last confirmed 20 days ago
B
Retailer 6
-
£1,384 GBP
$1,855 USD
View
B
Retailer 7
-
£1,980 GBP
$2,653 USD
View
C
Retailer 8
-
£2,279 GBP
$3,053 USD
View
C
Retailer 9
-
£2,353 GBP
$3,153 USD
View
Most Expensive
C
MOH London
LG447000695 · Nov 1
£3,586 GBP
View
9 more retailers have this diamond
Prices start from £1,082 GBPSave up to £2,503 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.

B+
1.51ct Princess
£1,082 GBP