Princess|Lab Grown|IGI

0.51ct H SI1 Princess Lab Grown Diamond

ID • H/SI1 • IGI LG436073344

Shape and cutting style on the report: Princess cut

Certificate IGI LG436073344

Diamond specifications and retailer prices

From €273 EUR
$305 USD
As of October 30, 2026
Save €1,091 EUR (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,364 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown princess diamond

This 0.51ct lab-grown princess sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436073344 or 436073344. Listed at 11 retailers as of October 29, 2026, with prices from €273 to €1,364, a €1,091 spread on the same certified stone. MOH London lists it at €1,364. 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

0.51
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073344
Dimensions4.42 × 4.32 × 3.18 mm
L/W Ratio1.02
Culet sizePointed
Top View
4.42 mm4.32 mm0.51 ctH / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436073344
Side View
Table 71.0%Crown 41°Girdle: MediumPavilion 40°Culet: NoneDepth 73.6%

Caratlytics Score

How it works →
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: €1,364 EUR|Low: €262 EUR|High: €1,373 EUR|Avg: €617 EUR|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 10€273 EUR
Retailer 8€295 EUR
Retailer 3€306 EUR
Retailer 15€317 EUR
Retailer 11€338 EUR
Retailer 14€338 EUR
Retailer 7€477 EUR
Retailer 4€479 EUR
Retailer 12€552 EUR
Retailer 2€619 EUR
Retailer 5€666 EUR
Retailer 9€1,041 EUR
Retailer 13€1,088 EUR
Retailer 6€1,361 EUR
MOH London€1,364 EUR

24 data points across 15 retailers

11 retailers€273 EUR to €1,364 EUR

A
Cheapest Retailer
-
€273 EUR
$305 USD
A
Retailer 2
-
€295 EUR
$330 USD
View
A
Retailer 3
-
€306 EUR
$342 USD
View
Final sale: no returns
A
Retailer 4
-
€317 EUR
$354 USD
View
B+
Retailer 5
-
€338 EUR
$378 USD
View
B+
Retailer 6
-
€338 EUR
$378 USD
View
B+
Retailer 7
-
€552 EUR
$617 USD
View
B
Retailer 8
-
€619 EUR
View
B
Retailer 9
-
€1,041 EUR
$1,163 USD
View
B
Retailer 10
-
€1,088 EUR
$1,216 USD
View
Most Expensive
B
MOH London
LG436073344 · Oct 29
€1,364 EUR
£1,200 GBP
View
10 more retailers have this diamond
Prices start from €273 EURSave up to €1,091 EUR

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
0.51ct Princess
€273 EUR