CaratHunter
Plans
Princess|Lab Grown|IGI

1.51ct F SI1 Princess Lab Grown Diamond

GD • F/SI1 • IGI LG528233201

Shape and cutting style on the report: Princess cut

Certificate IGI LG528233201

Diamond specifications and retailer prices

From €333 EUR
$372 USD
As of October 30, 2026
Save €1,144 EUR (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,477 EUR at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.51ct lab-grown princess diamond

This 1.51ct 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 LG528233201 or 528233201. Listed at 11 retailers as of October 28, 2026, with prices from €333 to €1,477, a €1,144 spread on the same certified stone. Brilliant Earth lists it at €1,477. 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

1.51
Carat
F
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528233201
Dimensions6.24 × 6.12 × 4.39 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
6.24 mm6.12 mm1.51 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528233201
Side View
Table 70.0%Crown 42.3°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 71.7%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: €877 EUR|Low: €322 EUR|High: €1,745 EUR|Avg: €807 EUR|+32.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 4€333 EUR
Retailer 3€336 EUR
Retailer 6€557 EUR
Retailer 8€577 EUR
Retailer 9€770 EUR
Retailer 1€877 EUR
Retailer 10€997 EUR
Retailer 5€1,017 EUR
Retailer 7€1,162 EUR
Retailer 2€1,745 EUR

13 data points across 10 retailers

11 retailers€333 EUR to €1,477 EUR

Retailer 1
-
€182 EUR
$203 USD
Price last confirmed 41 days ago
Retailer 2
-
€222 EUR
$248 USD
View
Price last confirmed 40 days ago
B+
Retailer 3
-
€333 EUR
$372 USD
View
B+
Retailer 4
-
€336 EUR
$375 USD
View
B
Retailer 5
-
€557 EUR
£490 GBP
View
B
Retailer 6
-
€577 EUR
$644 USD
View
B
Retailer 7
-
€770 EUR
$860 USD
View
B
Retailer 8
-
€877 EUR
$980 USD
View
B
Retailer 9
-
€1,017 EUR
$1,136 USD
View
B
Retailer 10
-
€1,162 EUR
$1,298 USD
View
Most Expensive
C
Brilliant Earth
22301510A · Oct 28
€1,477 EUR
$1,650 USD
View
10 more retailers have this diamond
Prices start from €333 EURSave up to €1,144 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+
1.51ct Princess
€333 EUR