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Princess|Lab Grown|IGI

1.71ct J SI1 Princess Lab Grown Diamond

ID • J/SI1 • IGI LG447001591

Shape and cutting style on the report: Princess cut

Certificate IGI LG447001591

Diamond specifications and retailer prices

From €859 EUR
$960 USD
As of October 31, 2026
Save €4,025 EUR (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,885 EUR at MOH London · As of October 29, 2026
View at MOH London

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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447001591 or 447001591. Listed at 11 retailers as of October 29, 2026, with prices from €859 to €4,885, a €4,025 spread on the same certified stone. MOH London lists it at €4,885. 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
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001591
Dimensions6.52 × 6.36 × 4.69 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
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Top View
6.52 mm6.36 mm1.71 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447001591
Side View
Table 69.5%Crown 44.3°Girdle: MediumPavilion 38.3°Culet: NoneDepth 73.7%

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 31
Current: €4,885 EUR|Low: €859 EUR|High: €4,918 EUR|Avg: €2,573 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2€859 EUR
Retailer 4€1,466 EUR
Retailer 6€1,642 EUR
Retailer 9€1,677 EUR
Retailer 7€1,853 EUR
Retailer 8€2,285 EUR
Retailer 5€2,675 EUR
Retailer 3€2,933 EUR
Retailer 10€4,871 EUR
MOH London€4,885 EUR

14 data points across 10 retailers

11 retailers€859 EUR to €4,885 EUR

A
Cheapest Retailer
-
€859 EUR
$960 USD
B+
Retailer 2
-
€1,466 EUR
$1,638 USD
View
B+
Retailer 3
-
€1,596 EUR
$1,783 USD
View
B+
Retailer 4
-
€1,642 EUR
$1,834 USD
View
Final sale: no returns
Retailer 5
-
€1,702 EUR
$1,901 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€1,702 EUR
$1,901 USD
View
B+
Retailer 7
-
€1,853 EUR
$2,070 USD
View
B
Retailer 8
-
€2,675 EUR
$2,988 USD
View
B
Retailer 9
-
€2,933 EUR
$3,277 USD
View
B
Retailer 10
-
€3,188 EUR
$3,562 USD
View
Most Expensive
B
MOH London
LG447001591 · Oct 29
€4,885 EUR
£4,297 GBP
View
10 more retailers have this diamond
Prices start from €859 EURSave up to €4,025 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
€859 EUR