CaratHunter
Plans
Princess|Lab Grown|IGI

1.70ct E SI1 Princess Lab Grown Diamond

GD • E/SI1 • IGI LG528207701

Shape and cutting style on the report: Princess cut

Certificate IGI LG528207701

Diamond specifications and retailer prices

From €226 EUR
$251 USD
As of October 27, 2026
Save €1,104 EUR (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,330 EUR at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.7ct lab-grown princess diamond

This 1.7ct lab-grown princess sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG528207701 or 528207701. Listed at 19 retailers as of October 27, 2026, with prices from €226 to €1,330, a €1,104 spread on the same certified stone. Brilliant Earth lists it at €1,330. 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

1.70
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528207701
Dimensions6.44 × 6.41 × 4.47 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.44 mm6.41 mm1.70 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528207701
Side View
Table 72.5%Crown 44.1°Girdle: Slightly ThickPavilion 37.3°Culet: NoneDepth 69.7%

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: €1,330 EUR|Low: €217 EUR|High: €1,357 EUR|Avg: €613 EUR|-2.0%
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 18€226 EUR
Retailer 9€252 EUR
Retailer 10€261 EUR
Retailer 6€280 EUR
Retailer 19€280 EUR
Retailer 14€360 EUR
Retailer 5€377 EUR
Retailer 15€422 EUR
Retailer 12€447 EUR
Retailer 4€514 EUR
Retailer 7€524 EUR
Retailer 2€531 EUR
Retailer 17€860 EUR
Retailer 3€900 EUR
Retailer 11€946 EUR
Retailer 16€1,006 EUR
Retailer 13€1,129 EUR
Retailer 8€1,219 EUR
Brilliant Earth€1,330 EUR

39 data points across 19 retailers

19 retailers€226 EUR to €1,330 EUR

A
Cheapest Retailer
-
€226 EUR
$251 USD
B+
Retailer 2
-
€252 EUR
$281 USD
View
Final sale: no returns
B+
Retailer 3
-
€261 EUR
$291 USD
View
B+
Retailer 4
-
€280 EUR
$312 USD
View
B+
Retailer 5
-
€280 EUR
$312 USD
View
B+
Retailer 6
-
€360 EUR
£316 GBP
View
B+
Retailer 7
-
€377 EUR
$420 USD
View
B+
Retailer 8
-
€422 EUR
$470 USD
View
B+
Retailer 9
-
€447 EUR
View
B+
Retailer 10
-
€514 EUR
$572 USD
View
B+
Retailer 11
-
€524 EUR
$583 USD
View
B+
Retailer 12
-
€531 EUR
£466 GBP
View
B
Retailer 13
-
€860 EUR
$957 USD
View
B
Retailer 14
-
€900 EUR
$1,002 USD
View
B
Retailer 15
-
€946 EUR
$1,053 USD
View
B
Retailer 16
-
€1,006 EUR
$1,120 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
€1,129 EUR
£989 GBP
View
B
Retailer 18
-
€1,219 EUR
$1,357 USD
View
Most Expensive
B
Brilliant Earth
16080965A · Oct 28
€1,330 EUR
$1,480 USD
View
18 more retailers have this diamond
Prices start from €226 EURSave up to €1,104 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.

A
1.70ct Princess
€226 EUR