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 $305 USD
As of October 27, 2026
Save $1,219 USD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,524 USD 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 27, 2026, with prices from $305 to $1,524, a $1,219 spread on the same certified stone. MOH London lists it at $1,524. 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 27
Current: $1,524 USD|Low: $293 USD|High: $1,534 USD|Avg: $687 USD|-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 29, 2026
Retailer 9$305 USD
Retailer 3$342 USD
Retailer 15$354 USD
Retailer 10$360 USD
Retailer 11$378 USD
Retailer 14$378 USD
Retailer 7$533 USD
Retailer 4$535 USD
Retailer 12$617 USD
Retailer 2$692 USD
Retailer 5$744 USD
Retailer 8$1,163 USD
Retailer 13$1,216 USD
Retailer 6$1,520 USD
MOH London$1,524 USD

22 data points across 15 retailers

11 retailers$305 USD to $1,524 USD

A
Cheapest Retailer
-
$305 USD
A
Retailer 2
-
$342 USD
View
Final sale: no returns
A
Retailer 3
-
$354 USD
View
A
Retailer 4
-
$360 USD
View
B+
Retailer 5
-
$378 USD
View
B+
Retailer 6
-
$378 USD
View
B+
Retailer 7
-
$617 USD
View
B
Retailer 8
-
$692 USD
€659 EUR
View
B
Retailer 9
-
$1,163 USD
View
B
Retailer 10
-
$1,216 USD
View
Most Expensive
B
MOH London
LG436073344 · Oct 29
$1,524 USD
£1,200 GBP
View
10 more retailers have this diamond
Prices start from $305 USDSave up to $1,219 USD

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
$305 USD