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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 $573 NZD
$323 USD
As of October 30, 2026
Save $2,354 NZD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,928 NZD 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 $573 to $2,928, a $2,354 spread on the same certified stone. Brilliant Earth lists it at $2,928. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,928 NZD|Low: $550 NZD|High: $4,755 NZD|Avg: $1,506 NZD|-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$573 NZD
Retailer 16$641 NZD
Retailer 7$665 NZD
Retailer 5$711 NZD
Retailer 17$711 NZD
Retailer 10$794 NZD
Retailer 11$985 NZD
Retailer 6$1,144 NZD
Retailer 3$1,155 NZD
Retailer 8$1,182 NZD
Retailer 2$1,260 NZD
Retailer 13$2,085 NZD
Retailer 4$2,285 NZD
Retailer 9$2,365 NZD
Retailer 15$2,815 NZD
Retailer 12$2,864 NZD
Brilliant Earth$2,928 NZD

44 data points across 17 retailers

17 retailers$573 NZD to $2,928 NZD

A
Cheapest Retailer
-
$573 NZD
$323 USD
A
Retailer 2
-
$641 NZD
$361 USD
View
Final sale: no returns
A
Retailer 3
-
$665 NZD
$375 USD
View
A
Retailer 4
-
$711 NZD
$401 USD
View
A
Retailer 5
-
$711 NZD
$401 USD
View
A
Retailer 6
-
$794 NZD
£352 GBP
View
A
Retailer 7
-
$985 NZD
$555 USD
View
B+
Retailer 8
-
$1,144 NZD
$645 USD
View
B+
Retailer 9
-
$1,155 NZD
$651 USD
View
B+
Retailer 10
-
$1,182 NZD
$666 USD
View
B+
Retailer 11
-
$1,260 NZD
£559 GBP
View
B
Retailer 12
-
$2,085 NZD
$1,175 USD
View
B
Retailer 13
-
$2,285 NZD
$1,288 USD
View
B
Retailer 14
-
$2,365 NZD
$1,333 USD
View
B
Retailer 15
-
$2,815 NZD
$1,587 USD
View
B
Retailer 16
-
$2,864 NZD
£1,271 GBP
View
Most Expensive
B
Brilliant Earth
18790708A · Oct 30
$2,928 NZD
$1,650 USD
View
16 more retailers have this diamond
Prices start from $573 NZDSave up to $2,354 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
1.70ct Princess
$573 NZD