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Princess|Lab Grown|IGI

1.51ct F SI1 Princess Lab Grown Diamond

GD • F/SI1 • IGI LG528233201

Shape and cutting style on the report: Princess cut

Certificate IGI LG528233201

Diamond specifications and retailer prices

From £278 GBP
As of November 6, 2026
Save £1,433 GBP (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,711 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

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 F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG528233201 or 528233201. Listed at 15 retailers as of November 6, 2026, with prices from £278 to £1,711, a £1,433 spread on the same certified stone. Do Amore Diamonds lists it at £1,711. 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
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528233201
Dimensions6.24 × 6.12 × 4.39 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.24 mm6.12 mm1.51 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528233201
Side View
Table 70.0%Crown 42.3°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 71.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £1,711 GBP|Low: £269 GBP|High: £1,711 GBP|Avg: £692 GBP|+17.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9£278 GBP
Retailer 8£280 GBP
Retailer 2£335 GBP
Retailer 5£427 GBP
Retailer 4£459 GBP
Retailer 3£643 GBP
Retailer 7£732 GBP
Retailer 10£849 GBP
Retailer 11£970 GBP
Retailer 6£1,053 GBP
Do Amore Diamonds£1,711 GBP

17 data points across 11 retailers

15 retailers£278 GBP to £1,711 GBP

Retailer 1
-
£152 GBP
Price last confirmed 45 days ago
Retailer 2
-
£185 GBP
View
Price last confirmed 44 days ago
B+
Retailer 3
-
£278 GBP
View
B+
Retailer 4
-
£280 GBP
View
B+
Retailer 5
-
£335 GBP
View
B+
Retailer 6
-
£359 GBP
View
B+
Retailer 7
-
£427 GBP
View
B+
Retailer 8
-
£459 GBP
View
B
Retailer 9
-
£643 GBP
View
B
Retailer 10
-
£732 GBP
View
B
Retailer 11
-
£849 GBP
View
B
Retailer 12
-
£970 GBP
View
B
Retailer 13
-
£1,053 GBP
View
Retailer 14
-
£1,233 GBP
View
Price last confirmed 9 days ago
Most Expensive
C
Do Amore Diamonds
27-8BAD46E66 · Nov 6
£1,711 GBP
$2,290 USD
View
14 more retailers have this diamond
Prices start from £278 GBPSave up to £1,433 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
£278 GBP