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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 $389 NZD
$219 USD
As of October 30, 2026
Save $2,024 NZD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,413 NZD 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 29, 2026, with prices from $389 to $2,413, a $2,024 spread on the same certified stone. Brilliant Earth lists it at $2,413. 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

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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 30
Current: $2,413 NZD|Low: $389 NZD|High: $2,431 NZD|Avg: $1,160 NZD|-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 30, 2026
Retailer 5$389 NZD
Retailer 3$435 NZD
Retailer 18$451 NZD
Retailer 13$483 NZD
Retailer 10$550 NZD
Retailer 2$619 NZD
Retailer 16$653 NZD
Retailer 7$816 NZD
Retailer 11$895 NZD
Retailer 14$946 NZD
Retailer 12$991 NZD
Retailer 17$1,004 NZD
Retailer 9$1,380 NZD
Retailer 15$1,549 NZD
Retailer 4$1,643 NZD
Retailer 8$1,987 NZD
Retailer 6$2,208 NZD
Brilliant Earth$2,413 NZD

35 data points across 18 retailers

18 retailers$389 NZD to $2,413 NZD

A
Cheapest Retailer
-
$389 NZD
$219 USD
A
Retailer 2
-
$435 NZD
$245 USD
View
Final sale: no returns
A
Retailer 3
-
$451 NZD
$254 USD
View
A
Retailer 4
-
$483 NZD
$272 USD
View
A
Retailer 5
-
$550 NZD
$310 USD
View
A
Retailer 6
-
$619 NZD
£275 GBP
View
B+
Retailer 7
-
$653 NZD
$368 USD
View
A
Retailer 8
-
$816 NZD
$460 USD
View
A
Retailer 9
-
$895 NZD
£397 GBP
View
A
Retailer 10
-
$946 NZD
$533 USD
View
B+
Retailer 11
-
$991 NZD
€532 EUR
View
B+
Retailer 12
-
$1,004 NZD
$566 USD
View
B
Retailer 13
-
$1,380 NZD
$778 USD
View
B+
Retailer 14
-
$1,549 NZD
$873 USD
View
B
Retailer 15
-
$1,643 NZD
$926 USD
View
Retailer 16
-
$1,987 NZD
$1,120 USD
View
Price last confirmed 12 days ago
B
Retailer 17
-
$2,208 NZD
£980 GBP
View
Most Expensive
B
Brilliant Earth
11260603A · Oct 29
$2,413 NZD
$1,360 USD
View
17 more retailers have this diamond
Prices start from $389 NZDSave up to $2,024 NZD

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
$389 NZD