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Princess|Lab Grown|IGI

1.66ct G SI1 Princess Lab Grown Diamond

ID • G/SI1 • IGI LG530293278

Shape and cutting style on the report: Princess cut

Certificate IGI LG530293278

Diamond specifications and retailer prices

From $1,708 AUD
$1,200 USD
As of October 31, 2026
Save $3,150 AUD (65%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,283 AUD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 1.66ct lab-grown princess diamond

This 1.66ct lab-grown princess sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG530293278 or 530293278. Listed at 14 retailers as of October 31, 2026, with a 184% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.66
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530293278
Dimensions6.53 × 6.50 × 4.71 mm
L/W Ratio1.00
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
6.53 mm6.50 mm1.66 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG530293278
Side View
Table 66.0%Crown 43.6°Girdle: THN-MEDPavilion 39.1°Culet: NoneDepth 72.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $5,283 AUD|Low: $1,708 AUD|High: $8,156 AUD|Avg: $3,727 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9$1,708 AUD
Retailer 8$2,430 AUD
Retailer 3$2,644 AUD
Retailer 4$2,720 AUD
Retailer 10$2,819 AUD
Retailer 12$2,819 AUD
Retailer 6$3,856 AUD
Retailer 2$3,995 AUD
Retailer 11$4,425 AUD
Retailer 7$4,859 AUD
NZ Jewellers$5,283 AUD
Retailer 5$8,049 AUD

43 data points across 12 retailers

14 retailers$1,708 AUD to $4,859 AUD

B
Cheapest Retailer
-
$1,708 AUD
$1,200 USD
B
Retailer 2
-
$2,430 AUD
$1,707 USD
View
B
Retailer 3
-
$2,644 AUD
$1,857 USD
View
B
Retailer 4
-
$2,720 AUD
$1,911 USD
View
Final sale: no returns
B
Retailer 5
-
$2,819 AUD
$1,980 USD
View
Retailer 6
-
$2,819 AUD
$1,980 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
$3,061 AUD
$2,150 USD
View
B
Retailer 8
-
$3,856 AUD
£2,133 GBP
View
B
Retailer 9
-
$3,995 AUD
£2,210 GBP
View
B
Retailer 10
-
$4,425 AUD
$3,108 USD
View
B
Retailer 11
-
$4,859 AUD
$3,413 USD
View
Most Expensive
NZ Jewellers
27edf87f-37df-4eef-8b73-dd4ab8c75263 · Oct 31
$5,283 AUD
$3,711 USD
View
Price under review
11 more retailers have this diamond
Prices start from $1,708 AUDSave up to $3,150 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.

B
1.66ct Princess
$1,708 AUD