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Princess|Lab Grown|IGI

1.73ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG619437868

Shape and cutting style on the report: Princess cut

Certificate IGI LG619437868

Diamond specifications and retailer prices

From $465 NZD
$262 USD
As of October 30, 2026
Save $2,498 NZD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,963 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.73ct lab-grown princess diamond

This 1.73ct lab-grown princess sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG619437868 or 619437868. Listed at 17 retailers as of October 30, 2026, with prices from $465 to $2,963, a $2,498 spread on the same certified stone. Brilliant Earth lists it at $2,963. 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

1.73
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG619437868
Dimensions6.49 × 6.43 × 4.67 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.49 mm6.43 mm1.73 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG619437868
Side View
Table 69.0%Crown 44.1°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 72.6%

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 30
Current: $2,963 NZD|Low: $394 NZD|High: $4,187 NZD|Avg: $1,303 NZD|-29.2%
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
October 31, 2026
Retailer 4$465 NZD
Retailer 13$539 NZD
Retailer 5$577 NZD
Retailer 17$577 NZD
Retailer 16$646 NZD
Retailer 11$790 NZD
Retailer 10$872 NZD
Retailer 8$962 NZD
Retailer 2$1,095 NZD
Retailer 7$1,139 NZD
Retailer 6$1,192 NZD
Retailer 14$1,773 NZD
Retailer 3$1,854 NZD
Retailer 15$2,262 NZD
Retailer 12$2,316 NZD
Retailer 9$2,378 NZD
Brilliant Earth$2,963 NZD

38 data points across 17 retailers

17 retailers$465 NZD to $2,963 NZD

A
Cheapest Retailer
-
$465 NZD
$262 USD
A
Retailer 2
-
$539 NZD
$304 USD
View
A
Retailer 3
-
$577 NZD
$325 USD
View
A
Retailer 4
-
$577 NZD
$325 USD
View
Retailer 5
-
$646 NZD
£287 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
$790 NZD
$445 USD
View
A
Retailer 7
-
$872 NZD
€468 EUR
View
B+
Retailer 8
-
$962 NZD
$542 USD
View
B+
Retailer 9
-
$1,095 NZD
£486 GBP
View
B+
Retailer 10
-
$1,139 NZD
$642 USD
View
B+
Retailer 11
-
$1,192 NZD
$672 USD
View
B
Retailer 12
-
$1,773 NZD
$999 USD
View
B
Retailer 13
-
$1,854 NZD
$1,045 USD
View
Retailer 14
-
$2,262 NZD
$1,275 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$2,316 NZD
£1,028 GBP
View
B
Retailer 16
-
$2,378 NZD
$1,340 USD
View
Most Expensive
B
Brilliant Earth
9118972A · Oct 30
$2,963 NZD
$1,670 USD
View
16 more retailers have this diamond
Prices start from $465 NZDSave up to $2,498 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
1.73ct Princess
$465 NZD