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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 €225 EUR
$251 USD
As of October 30, 2026
Save €1,100 EUR (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,325 EUR at Brilliant Earth · As of October 29, 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 29, 2026, with prices from €225 to €1,325, a €1,100 spread on the same certified stone. Brilliant Earth lists it at €1,325. 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
Color
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 30
Current: €1,325 EUR|Low: €216 EUR|High: €1,334 EUR|Avg: €608 EUR
Brilliant Earth
Retailer 2
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Retailer 19
October 31, 2026
Retailer 18€225 EUR
Retailer 9€252 EUR
Retailer 10€260 EUR
Retailer 6€279 EUR
Retailer 19€279 EUR
Retailer 12€358 EUR
Retailer 5€376 EUR
Retailer 15€421 EUR
Retailer 13€445 EUR
Retailer 4€512 EUR
Retailer 7€522 EUR
Retailer 2€531 EUR
Retailer 17€857 EUR
Retailer 3€897 EUR
Retailer 11€943 EUR
Retailer 16€1,003 EUR
Retailer 14€1,124 EUR
Retailer 8€1,215 EUR
Brilliant Earth€1,325 EUR

40 data points across 19 retailers

19 retailers€225 EUR to €1,325 EUR

A
Cheapest Retailer
-
€225 EUR
$251 USD
B+
Retailer 2
-
€252 EUR
$281 USD
View
Final sale: no returns
B+
Retailer 3
-
€260 EUR
$291 USD
View
B+
Retailer 4
-
€279 EUR
$312 USD
View
B+
Retailer 5
-
€279 EUR
$312 USD
View
A
Retailer 6
-
€358 EUR
£315 GBP
View
B+
Retailer 7
-
€376 EUR
$420 USD
View
B+
Retailer 8
-
€421 EUR
$470 USD
View
B+
Retailer 9
-
€445 EUR
View
B+
Retailer 10
-
€512 EUR
$572 USD
View
B+
Retailer 11
-
€522 EUR
$583 USD
View
B+
Retailer 12
-
€531 EUR
£467 GBP
View
B
Retailer 13
-
€857 EUR
$957 USD
View
B
Retailer 14
-
€897 EUR
$1,002 USD
View
B
Retailer 15
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€943 EUR
$1,053 USD
View
Retailer 16
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€1,003 EUR
$1,120 USD
View
Price last confirmed 13 days ago
B
Retailer 17
-
€1,124 EUR
£989 GBP
View
B
Retailer 18
-
€1,215 EUR
$1,357 USD
View
Most Expensive
B
Brilliant Earth
16080965A · Oct 29
€1,325 EUR
$1,480 USD
View
18 more retailers have this diamond
Prices start from €225 EURSave up to €1,100 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
€225 EUR