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Princess|Lab Grown|IGI

1.51ct D IF Princess Lab Grown Diamond

GD • D/IF • IGI LG728558590

Shape and cutting style on the report: Princess cut

Certificate IGI LG728558590

Diamond specifications and retailer prices

From £452 GBP
$606 USD
As of October 30, 2026
Save £3,563 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,015 GBP at Do Amore Diamonds · As of October 31, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG728558590 or 728558590. Listed at 18 retailers as of October 30, 2026, with prices from £452 to £4,015, a £3,563 spread on the same certified stone. Do Amore Diamonds lists it at £4,015. 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
D
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728558590
Dimensions6.31 × 6.29 × 4.34 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.31 mm6.29 mm1.51 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728558590
Side View
Table 71.0%Crown 43.7°Girdle: MediumPavilion 37.6°Culet: NoneDepth 69.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £4,015 GBP|Low: £452 GBP|High: £4,739 GBP|Avg: £1,467 GBP|-15.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
Retailer 18
October 31, 2026
Retailer 7£452 GBP
Retailer 14£506 GBP
Retailer 15£594 GBP
Retailer 10£598 GBP
Retailer 18£649 GBP
Retailer 2£657 GBP
Retailer 3£730 GBP
Retailer 16£740 GBP
Retailer 12£900 GBP
Retailer 17£1,390 GBP
Retailer 5£1,393 GBP
Retailer 11£1,441 GBP
Retailer 6£1,627 GBP
Retailer 4£1,643 GBP
Retailer 9£2,081 GBP
Retailer 13£2,451 GBP
Retailer 8£3,247 GBP
Do Amore Diamonds£4,015 GBP

37 data points across 18 retailers

18 retailers£452 GBP to £4,015 GBP

A
Cheapest Retailer
-
£452 GBP
$606 USD
A
Retailer 2
-
£506 GBP
$678 USD
View
A
Retailer 3
-
£594 GBP
$796 USD
View
A
Retailer 4
-
£598 GBP
$801 USD
View
Final sale: no returns
A
Retailer 5
-
£649 GBP
$870 USD
View
A
Retailer 6
-
£657 GBP
$880 USD
View
A
Retailer 7
-
£730 GBP
$978 USD
View
A
Retailer 8
-
£740 GBP
$992 USD
View
A
Retailer 9
-
£900 GBP
€1,148 EUR
View
B+
Retailer 10
-
£1,390 GBP
$1,863 USD
View
B+
Retailer 11
-
£1,393 GBP
$1,867 USD
View
B+
Retailer 12
-
£1,441 GBP
A$2,970 AUD
View
B+
Retailer 13
-
£1,627 GBP
$2,180 USD
View
B+
Retailer 14
-
£1,643 GBP
$2,202 USD
View
Retailer 15
-
£2,081 GBP
A$4,290 AUD
View
Price last confirmed 23 days ago
B
Retailer 16
-
£2,451 GBP
View
B
Retailer 17
-
£3,247 GBP
$4,350 USD
View
Most Expensive
B
Do Amore Diamonds
27-A345C685B · Oct 31
£4,015 GBP
$5,380 USD
View
17 more retailers have this diamond
Prices start from £452 GBPSave up to £3,563 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
£452 GBP