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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 $312 AUD
$219 USD
As of October 27, 2026
Save $1,624 AUD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,936 AUD 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 $312 to $1,936, a $1,624 spread on the same certified stone. Brilliant Earth lists it at $1,936. 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: $1,936 AUD|Low: $312 AUD|High: $1,950 AUD|Avg: $923 AUD|-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$312 AUD
Retailer 3$349 AUD
Retailer 18$362 AUD
Retailer 12$387 AUD
Retailer 10$441 AUD
Retailer 13$498 AUD
Retailer 16$524 AUD
Retailer 7$655 AUD
Retailer 2$718 AUD
Retailer 14$759 AUD
Retailer 11$795 AUD
Retailer 17$806 AUD
Retailer 9$1,107 AUD
Retailer 15$1,243 AUD
Retailer 4$1,318 AUD
Retailer 8$1,594 AUD
Retailer 6$1,772 AUD
Brilliant Earth$1,936 AUD

35 data points across 18 retailers

18 retailers$312 AUD to $1,936 AUD

A
Cheapest Retailer
-
$312 AUD
$219 USD
A
Retailer 2
-
$349 AUD
$245 USD
View
Final sale: no returns
A
Retailer 3
-
$362 AUD
$254 USD
View
A
Retailer 4
-
$387 AUD
$272 USD
View
A
Retailer 5
-
$441 AUD
$310 USD
View
A
Retailer 6
-
$498 AUD
£275 GBP
View
B+
Retailer 7
-
$524 AUD
$368 USD
View
A
Retailer 8
-
$655 AUD
$460 USD
View
A
Retailer 9
-
$718 AUD
£397 GBP
View
A
Retailer 10
-
$759 AUD
$533 USD
View
B+
Retailer 11
-
$795 AUD
€532 EUR
View
B+
Retailer 12
-
$806 AUD
$566 USD
View
B
Retailer 13
-
$1,107 AUD
$778 USD
View
B+
Retailer 14
-
$1,243 AUD
$873 USD
View
B
Retailer 15
-
$1,318 AUD
$926 USD
View
B
Retailer 16
-
$1,594 AUD
$1,120 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
$1,772 AUD
£980 GBP
View
Most Expensive
B
Brilliant Earth
11260603A · Oct 29
$1,936 AUD
$1,360 USD
View
17 more retailers have this diamond
Prices start from $312 AUDSave up to $1,624 AUD

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
$312 AUD