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Princess|Lab Grown|IGI

1.78ct F SI1 Princess Lab Grown Diamond

GD • F/SI1 • IGI LG528235175

Shape and cutting style on the report: Princess cut

Certificate IGI LG528235175

Diamond specifications and retailer prices

From €447 EUR
$499 USD
As of November 1, 2026
Save €1,925 EUR (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,372 EUR at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG528235175 or 528235175. Listed at 13 retailers as of November 1, 2026, with prices from €447 to €2,372, a €1,925 spread on the same certified stone. Do Amore Diamonds lists it at €2,372. 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
F
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528235175
Dimensions6.75 × 6.60 × 4.71 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
6.75 mm6.60 mm1.78 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528235175
Side View
Table 69.5%Crown 40.5°Girdle: MediumPavilion 39.1°Culet: NoneDepth 71.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €2,372 EUR|Low: €419 EUR|High: €2,372 EUR|Avg: €891 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8€447 EUR
Retailer 6€448 EUR
Retailer 4€537 EUR
Retailer 10€542 EUR
Retailer 2€655 EUR
Retailer 12€857 EUR
Retailer 9€900 EUR
Retailer 7€1,019 EUR
Retailer 3€1,199 EUR
Retailer 11€1,321 EUR
Retailer 5€1,466 EUR
Do Amore Diamonds€2,372 EUR

36 data points across 12 retailers

13 retailers€447 EUR to €2,372 EUR

Retailer 1
-
€210 EUR
$235 USD
Price last confirmed 41 days ago
Retailer 2
-
€257 EUR
$287 USD
View
Price last confirmed 40 days ago
B+
Retailer 3
-
€447 EUR
$499 USD
View
B+
Retailer 4
-
€448 EUR
$500 USD
View
B+
Retailer 5
-
€542 EUR
$606 USD
View
B
Retailer 6
-
€655 EUR
£576 GBP
View
B
Retailer 7
-
€857 EUR
$958 USD
View
B
Retailer 8
-
€900 EUR
$1,005 USD
View
B
Retailer 9
-
€1,019 EUR
$1,138 USD
View
B
Retailer 10
-
€1,199 EUR
$1,339 USD
View
B
Retailer 11
-
€1,321 EUR
$1,476 USD
View
C
Retailer 12
-
€1,466 EUR
£1,290 GBP
View
Most Expensive
C
Do Amore Diamonds
27-0988B7928 · Nov 2
€2,372 EUR
$2,650 USD
View
12 more retailers have this diamond
Prices start from €447 EURSave up to €1,925 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
€447 EUR