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Princess|Lab Grown|IGI

1.70ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG789629098

Shape and cutting style on the report: Princess cut

Certificate IGI LG789629098

Diamond specifications and retailer prices

From $460 AUD
$323 USD
As of October 30, 2026
Save $1,889 AUD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,349 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.7ct lab-grown princess diamond

This 1.7ct 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 LG789629098 or 789629098. Listed at 17 retailers as of October 30, 2026, with prices from $460 to $2,349, a $1,889 spread on the same certified stone. Brilliant Earth lists it at $2,349. 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

1.70
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789629098
Dimensions6.55 × 6.48 × 4.62 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.55 mm6.48 mm1.70 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789629098
Side View
Table 71.0%Crown 44.4°Girdle: MediumPavilion 38.5°Culet: NoneDepth 71.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,349 AUD|Low: $441 AUD|High: $3,815 AUD|Avg: $1,208 AUD|-28.9%
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 14$460 AUD
Retailer 16$514 AUD
Retailer 7$534 AUD
Retailer 5$571 AUD
Retailer 17$571 AUD
Retailer 10$637 AUD
Retailer 11$790 AUD
Retailer 6$918 AUD
Retailer 3$927 AUD
Retailer 8$948 AUD
Retailer 2$1,011 AUD
Retailer 13$1,673 AUD
Retailer 4$1,834 AUD
Retailer 9$1,898 AUD
Retailer 15$2,259 AUD
Retailer 12$2,298 AUD
Brilliant Earth$2,349 AUD

44 data points across 17 retailers

17 retailers$460 AUD to $2,349 AUD

A
Cheapest Retailer
-
$460 AUD
$323 USD
A
Retailer 2
-
$514 AUD
$361 USD
View
Final sale: no returns
A
Retailer 3
-
$534 AUD
$375 USD
View
A
Retailer 4
-
$571 AUD
$401 USD
View
A
Retailer 5
-
$571 AUD
$401 USD
View
A
Retailer 6
-
$637 AUD
£352 GBP
View
A
Retailer 7
-
$790 AUD
$555 USD
View
B+
Retailer 8
-
$918 AUD
$645 USD
View
B+
Retailer 9
-
$927 AUD
$651 USD
View
B+
Retailer 10
-
$948 AUD
$666 USD
View
B+
Retailer 11
-
$1,011 AUD
£559 GBP
View
B
Retailer 12
-
$1,673 AUD
$1,175 USD
View
B
Retailer 13
-
$1,834 AUD
$1,288 USD
View
B
Retailer 14
-
$1,898 AUD
$1,333 USD
View
B
Retailer 15
-
$2,259 AUD
$1,587 USD
View
B
Retailer 16
-
$2,298 AUD
£1,271 GBP
View
Most Expensive
B
Brilliant Earth
18790708A · Oct 30
$2,349 AUD
$1,650 USD
View
16 more retailers have this diamond
Prices start from $460 AUDSave up to $1,889 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
1.70ct Princess
$460 AUD