CaratHunter
Plans
Princess|Lab Grown|IGI

1.49ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG783621815

Shape and cutting style on the report: Princess cut

Certificate IGI LG783621815

Diamond specifications and retailer prices

From £475 GBP
As of October 30, 2026
Save £335 GBP (41%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £810 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.49ct lab-grown princess diamond

This 1.49ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783621815 or 783621815. Listed at 10 retailers as of October 30, 2026, with prices from £475 to £810, a £335 spread on the same certified stone. Brilliant Earth lists it at £810. 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

1.49
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.3°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783621815
Dimensions6.22 × 6.12 × 4.29 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.22 mm6.12 mm1.49 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783621815
Side View
Table 69.0%Crown 45.3°Girdle: STK-THKPavilion 36.1°Culet: NoneDepth 70.1%

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: £810 GBP|Low: £214 GBP|High: £810 GBP|Avg: £413 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 9£214 GBP
Retailer 3£273 GBP
Retailer 4£281 GBP
Retailer 5£286 GBP
Retailer 8£407 GBP
Retailer 2£475 GBP
Retailer 7£643 GBP
Retailer 6£742 GBP
Brilliant Earth£810 GBP

36 data points across 9 retailers

10 retailers£475 GBP to £810 GBP

Retailer 1
-
£214 GBP
Price last confirmed 9 days ago
Retailer 2
-
£273 GBP
View
Price last confirmed 8 days ago
Retailer 3
-
£281 GBP
View
Price last confirmed 9 days ago
Retailer 4
-
£286 GBP
View
Price last confirmed 9 days ago
Retailer 5
-
£407 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£475 GBP
View
Retailer 7
-
£550 GBP
View
Price last confirmed 9 days ago
Retailer 8
-
£643 GBP
View
Price last confirmed 9 days ago
Retailer 9
-
£742 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
22273504A · Oct 30
£810 GBP
$1,090 USD
View
9 more retailers have this diamond
Prices start from £475 GBPSave up to £335 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+
1.49ct Princess
£475 GBP