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Cushion|Lab Grown|IGI

1.70ct F VS2 Cushion Lab Grown Diamond

VG • F/VS2 • IGI LG591302215

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG591302215

Diamond specifications and retailer prices

From $405 AUD
$284 USD
As of November 1, 2026
Save $1,211 AUD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,617 AUD at Brilliance · As of November 1, 2026
View at Brilliance

About this 1.7ct lab-grown cushion diamond

This 1.7ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG591302215 or 591302215. Listed at 12 retailers as of November 1, 2026, with prices from $405 to $1,617, a $1,211 spread on the same certified stone. Brilliance lists it at $1,617. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
F
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591302215
Dimensions6.90 × 6.62 × 4.62 mm
L/W Ratio1.04
Girdle conditionFaceted
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
6.90 mm6.62 mm1.70 ctF / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591302215
Side View
Table 67.0%Crown 39°Girdle: MED-THKPavilion 38.4°Culet: NoneDepth 69.8%

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: Nov 1
Current: $1,617 AUD|Low: $405 AUD|High: $1,821 AUD|Avg: $1,109 AUD|-8.6%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 11$405 AUD
Retailer 10$449 AUD
Retailer 7$678 AUD
Retailer 2$741 AUD
Retailer 9$756 AUD
Retailer 5$850 AUD
Retailer 3$943 AUD
Retailer 6$1,527 AUD
Retailer 8$1,544 AUD
Retailer 4$1,593 AUD
Brilliance$1,617 AUD

41 data points across 11 retailers

12 retailers$405 AUD to $1,617 AUD

A
Cheapest Retailer
-
$405 AUD
$284 USD
Final sale: no returns
Retailer 2
-
$449 AUD
$315 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$678 AUD
$475 USD
View
A
Retailer 4
-
$741 AUD
£409 GBP
View
B+
Retailer 5
-
$756 AUD
$530 USD
View
B+
Retailer 6
-
$850 AUD
$596 USD
View
B+
Retailer 7
-
$943 AUD
$661 USD
View
Retailer 8
-
$1,517 AUD
$1,063 USD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$1,527 AUD
$1,070 USD
View
B
Retailer 10
-
$1,544 AUD
£852 GBP
View
B
Retailer 11
-
$1,593 AUD
£879 GBP
View
Most Expensive
B
Brilliance
D23994708 · Nov 1
$1,617 AUD
$1,133 USD
View
11 more retailers have this diamond
Prices start from $405 AUDSave up to $1,211 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 Cushion
$405 AUD