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Princess|Lab Grown|IGI

0.43ct D FL Princess Lab Grown Diamond

EX • D/FL • IGI LG831629010

Shape and cutting style on the report: Princess cut

Certificate IGI LG831629010

Diamond specifications and retailer prices

From £299 GBP
$400 USD
As of November 1, 2026
Save £994 GBP (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,293 GBP at Riddles Jewelry · As of October 31, 2026
View at Riddles Jewelry

About this 0.43ct lab-grown princess diamond

This 0.43ct lab-grown princess sits in the sub-half-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831629010 or 831629010. Listed at 13 retailers as of October 31, 2026, with prices from £299 to £1,293, a £994 spread on the same certified stone. Riddles Jewelry lists it at £1,293. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.43
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831629010
Dimensions4.09 × 4.05 × 2.77 mm
L/W Ratio1.01
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
4.09 mm4.05 mm0.43 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831629010
Side View
Table 67.0%Crown 40.5°Girdle: ThickPavilion 35.1°Culet: NoneDepth 68.4%

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: Nov 1
Current: £598 GBP|Low: £299 GBP|High: £1,293 GBP|Avg: £798 GBP|+11.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Riddles Jewelry
November 1, 2026
Retailer 2£299 GBP
Retailer 5£309 GBP
Retailer 10£375 GBP
Retailer 12£491 GBP
Retailer 9£550 GBP
Retailer 8£560 GBP
Retailer 1£598 GBP
Retailer 11£660 GBP
Retailer 3£796 GBP
Retailer 6£1,095 GBP
Retailer 4£1,250 GBP
Retailer 7£1,287 GBP
Riddles Jewelry£1,293 GBP

18 data points across 13 retailers

13 retailers£299 GBP to £1,293 GBP

A
Cheapest Retailer
-
£299 GBP
$400 USD
Final sale: no returns
A
Retailer 2
-
£309 GBP
$414 USD
View
A
Retailer 3
-
£375 GBP
$502 USD
View
B+
Retailer 4
-
£491 GBP
$658 USD
View
B+
Retailer 5
-
£495 GBP
$663 USD
View
B+
Retailer 6
-
£560 GBP
€715 EUR
View
B+
Retailer 7
-
£598 GBP
View
B
Retailer 8
-
£660 GBP
ZAR 14,281 ZAR
View
B
Retailer 9
-
£739 GBP
$990 USD
View
B
Retailer 10
-
£796 GBP
$1,067 USD
View
B
Retailer 11
-
£1,095 GBP
CA$2,037 CAD
View
B
Retailer 12
-
£1,287 GBP
$1,724 USD
View
Most Expensive
B
Riddles Jewelry
1996903044 · Oct 31
£1,293 GBP
$1,732 USD
View
12 more retailers have this diamond
Prices start from £299 GBPSave up to £994 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
0.43ct Princess
£299 GBP