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Princess|Lab Grown|IGI

1.71ct K SI1 Princess Lab Grown Diamond

ID • K/SI1 • IGI LG440012125

Shape and cutting style on the report: Princess cut

Certificate IGI LG440012125

Diamond specifications and retailer prices

From $1,035 USD
As of November 6, 2026
Save $3,024 USD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,059 USD at MOH London · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012125 or 440012125. Listed at 9 retailers as of November 5, 2026, with prices from $1,035 to $4,059, a $3,024 spread on the same certified stone. MOH London lists it at $4,059. 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
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012125
Dimensions6.43 × 6.43 × 4.75 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
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Top View
6.43 mm6.43 mm1.71 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012125
Side View
Table 73.5%Crown 42.6°Girdle: MediumPavilion 40.4°Culet: NoneDepth 73.9%

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: Nov 6
Current: $4,059 USD|Low: $1,035 USD|High: $4,125 USD|Avg: $2,437 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3$1,035 USD
Retailer 2$1,375 USD
Retailer 6$1,745 USD
Retailer 4$1,915 USD
Retailer 5$2,508 USD
Retailer 7$3,436 USD
MOH London$4,059 USD

17 data points across 7 retailers

9 retailers$1,035 USD to $4,059 USD

A
Cheapest Retailer
-
$1,035 USD
A
Retailer 2
-
$1,126 USD
View
Retailer 3
-
$1,200 USD
View
Price last confirmed 25 days ago
A
Retailer 4
-
$1,200 USD
View
A
Retailer 5
-
$1,375 USD
View
B+
Retailer 6
-
$1,915 USD
View
B
Retailer 7
-
$2,249 USD
View
B
Retailer 8
-
$2,508 USD
View
Most Expensive
B
MOH London
LG440012125 · Nov 5
$4,059 USD
£3,196 GBP
View
8 more retailers have this diamond
Prices start from $1,035 USDSave up to $3,024 USD

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
$1,035 USD