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Princess|Lab Grown|IGI

1.51ct D IF Princess Lab Grown Diamond

GD • D/IF • IGI LG836608706

Shape and cutting style on the report: Princess cut

Certificate IGI LG836608706

Diamond specifications and retailer prices

From £893 GBP
$1,196 USD
As of October 31, 2026
Save £2,399 GBP (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,291 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG836608706 or 836608706. Listed at 10 retailers as of October 31, 2026, with prices from £893 to £3,291, a £2,399 spread on the same certified stone. Brilliant Earth lists it at £3,291. 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 angle49.7°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836608706
Dimensions6.14 × 6.00 × 4.49 mm
L/W Ratio1.02
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
6.14 mm6.00 mm1.51 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836608706
Side View
Table 70.0%Crown 49.7°Girdle: Slightly ThickPavilion 38.3°Culet: NoneDepth 74.8%

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 31
Current: £3,291 GBP|Low: £893 GBP|High: £3,291 GBP|Avg: £1,953 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 7£893 GBP
Retailer 3£1,124 GBP
Retailer 4£1,136 GBP
Retailer 8£1,177 GBP
Retailer 2£2,092 GBP
Retailer 10£2,202 GBP
Retailer 6£2,296 GBP
Retailer 9£2,536 GBP
Retailer 5£2,746 GBP
Brilliant Earth£3,291 GBP

33 data points across 10 retailers

10 retailers£893 GBP to £3,291 GBP

A
Cheapest Retailer
-
£893 GBP
$1,196 USD
A
Retailer 2
-
£1,124 GBP
View
B+
Retailer 3
-
£1,136 GBP
€1,449 EUR
View
B+
Retailer 4
-
£1,177 GBP
$1,577 USD
View
B
Retailer 5
-
£2,092 GBP
A$4,312 AUD
View
Retailer 6
-
£2,202 GBP
$2,950 USD
View
Price last confirmed 34 days ago
B
Retailer 7
-
£2,296 GBP
$3,076 USD
View
B
Retailer 8
-
£2,536 GBP
$3,398 USD
View
B
Retailer 9
-
£2,746 GBP
View
Most Expensive
B
Brilliant Earth
21576744A · Oct 31
£3,291 GBP
$4,410 USD
View
9 more retailers have this diamond
Prices start from £893 GBPSave up to £2,399 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
£893 GBP