Princess|Lab Grown|IGI

1.78ct G SI2 Princess Lab Grown Diamond

GD • G/SI2 • IGI LG494167484

Shape and cutting style on the report: Princess cut

Certificate IGI LG494167484

Diamond specifications and retailer prices

From €804 EUR
$898 USD
As of November 1, 2026
Save €279 EUR (26%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,083 EUR at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

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 G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG494167484 or 494167484. Listed at 11 retailers as of November 1, 2026, with prices from €804 to €1,083, a €279 spread on the same certified stone. The Diamond Guys lists it at €1,083. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.78
Carat
G
Color
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG494167484
Dimensions6.65 × 6.54 × 4.64 mm
L/W Ratio1.02
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
6.65 mm6.54 mm1.78 ctG / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494167484
Side View
Table 72.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 70.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: €913 EUR|Low: €192 EUR|High: €1,083 EUR|Avg: €741 EUR|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
The Diamond Guys
October 18, 2026
Retailer 4€192 EUR
Retailer 6€409 EUR
Retailer 3€486 EUR
Retailer 2€771 EUR
Retailer 7€804 EUR
Retailer 1€913 EUR
Retailer 5€1,070 EUR
The Diamond Guys€1,083 EUR

16 data points across 8 retailers

11 retailers€804 EUR to €1,083 EUR

Retailer 1
-
€192 EUR
$215 USD
Price last confirmed 21 days ago
Retailer 2
-
€239 EUR
$267 USD
View
Price last confirmed 24 days ago
Retailer 3
-
€239 EUR
$267 USD
View
Price last confirmed 19 days ago
Retailer 4
-
€409 EUR
$457 USD
View
Price last confirmed 18 days ago
Retailer 5
-
€486 EUR
£428 GBP
View
Price last confirmed 16 days ago
Retailer 6
-
€771 EUR
$861 USD
View
Price last confirmed 16 days ago
B
Retailer 7
-
€804 EUR
$898 USD
View
Retailer 8
-
€848 EUR
$947 USD
View
Price last confirmed 24 days ago
B
Retailer 9
-
€913 EUR
$1,020 USD
View
Retailer 10
-
€1,070 EUR
£941 GBP
View
Price last confirmed 21 days ago
Most Expensive
C
The Diamond Guys
1980423639 · Nov 1
€1,083 EUR
$1,210 USD
View
10 more retailers have this diamond
Prices start from €804 EURSave up to €279 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.

B
1.78ct Princess
€804 EUR