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Princess|Lab Grown|IGI

1.71ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG514290249

Shape and cutting style on the report: Princess cut

Certificate IGI LG514290249

Diamond specifications and retailer prices

From €197 EUR
$219 USD
As of October 27, 2026
Save €1,025 EUR (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,222 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.71ct lab-grown princess diamond

This 1.71ct 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 top-tier cut grade and certified by IGI LG514290249 or 514290249. Listed at 18 retailers as of October 27, 2026, with prices from €197 to €1,222, a €1,025 spread on the same certified stone. Brilliant Earth lists it at €1,222. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.71
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514290249
Dimensions6.61 × 6.45 × 4.55 mm
L/W Ratio1.02
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
6.61 mm6.45 mm1.71 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514290249
Side View
Table 66.5%Crown 44.4°Girdle: MediumPavilion 37.3°Culet: NoneDepth 70.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: €1,222 EUR|Low: €197 EUR|High: €1,231 EUR|Avg: €583 EUR|-0.7%
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
October 29, 2026
Retailer 5€197 EUR
Retailer 3€220 EUR
Retailer 18€228 EUR
Retailer 12€244 EUR
Retailer 10€279 EUR
Retailer 13€314 EUR
Retailer 16€331 EUR
Retailer 7€413 EUR
Retailer 2€453 EUR
Retailer 14€479 EUR
Retailer 11€502 EUR
Retailer 17€509 EUR
Retailer 9€699 EUR
Retailer 15€784 EUR
Retailer 4€832 EUR
Retailer 8€1,006 EUR
Retailer 6€1,118 EUR
Brilliant Earth€1,222 EUR

35 data points across 18 retailers

18 retailers€197 EUR to €1,222 EUR

A
Cheapest Retailer
-
€197 EUR
$219 USD
A
Retailer 2
-
€220 EUR
$245 USD
View
Final sale: no returns
A
Retailer 3
-
€228 EUR
$254 USD
View
A
Retailer 4
-
€244 EUR
$272 USD
View
A
Retailer 5
-
€279 EUR
$310 USD
View
A
Retailer 6
-
€314 EUR
£275 GBP
View
B+
Retailer 7
-
€331 EUR
$368 USD
View
A
Retailer 8
-
€413 EUR
$460 USD
View
A
Retailer 9
-
€453 EUR
£397 GBP
View
A
Retailer 10
-
€479 EUR
$533 USD
View
B+
Retailer 11
-
€502 EUR
View
B+
Retailer 12
-
€509 EUR
$566 USD
View
B
Retailer 13
-
€699 EUR
$778 USD
View
B+
Retailer 14
-
€784 EUR
$873 USD
View
B
Retailer 15
-
€832 EUR
$926 USD
View
B
Retailer 16
-
€1,006 EUR
$1,120 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
€1,118 EUR
£980 GBP
View
Most Expensive
B
Brilliant Earth
11260603A · Oct 29
€1,222 EUR
$1,360 USD
View
17 more retailers have this diamond
Prices start from €197 EURSave up to €1,025 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
1.71ct Princess
€197 EUR