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Princess|Lab Grown|IGI

1.78ct H VS2 Princess Lab Grown Diamond

ID • H/VS2 • IGI LG573311516

Shape and cutting style on the report: Princess cut

Certificate IGI LG573311516

Diamond specifications and retailer prices

From £138 GBP
$184 USD
As of October 27, 2026
Save £667 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £805 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.78ct lab-grown princess diamond

This 1.78ct lab-grown princess sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG573311516 or 573311516. Listed at 11 retailers as of October 27, 2026, with prices from £138 to £805, a £667 spread on the same certified stone. MOH London lists it at £805. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG573311516
Dimensions6.85 × 6.62 × 4.66 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.85 mm6.62 mm1.78 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG573311516
Side View
Table 71.5%Crown 48°Girdle: MediumPavilion 38.1°Culet: NoneDepth 70.4%

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: Oct 27
Current: £805 GBP|Low: £138 GBP|High: £950 GBP|Avg: £515 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 6£138 GBP
Retailer 10£240 GBP
Retailer 5£302 GBP
Retailer 7£374 GBP
Retailer 8£429 GBP
Retailer 3£542 GBP
Retailer 9£571 GBP
Retailer 4£581 GBP
Retailer 2£591 GBP
MOH London£805 GBP
Retailer 11£950 GBP

16 data points across 11 retailers

11 retailers£138 GBP to £805 GBP

A
Cheapest Retailer
-
£138 GBP
$184 USD
A
Retailer 2
-
£160 GBP
$213 USD
View
A
Retailer 3
-
£171 GBP
$228 USD
View
A
Retailer 4
-
£171 GBP
$228 USD
View
B+
Retailer 5
-
£302 GBP
$402 USD
View
A
Retailer 6
-
£374 GBP
$498 USD
View
A
Retailer 7
-
£429 GBP
$571 USD
View
B+
Retailer 8
-
£550 GBP
$733 USD
View
B+
Retailer 9
-
£581 GBP
$774 USD
View
B+
Retailer 10
-
£591 GBP
$787 USD
View
Most Expensive
B+
MOH London
LG573311516 · Oct 29
£805 GBP
View
10 more retailers have this diamond
Prices start from £138 GBPSave up to £667 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
1.78ct Princess
£138 GBP