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Cushion|Lab Grown|IGI

1.70ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG600340947

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG600340947

Diamond specifications and retailer prices

From $325 CAD
$232 USD
As of October 28, 2026
Save $2,209 CAD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,533 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG600340947 or 600340947. Listed at 12 retailers as of October 28, 2026, with prices from $325 to $2,533, a $2,209 spread on the same certified stone. Brilliant Earth lists it at $2,533. 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600340947
Dimensions7.30 × 6.55 × 4.31 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.30 mm6.55 mm1.70 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600340947
Side View
Table 59.0%Crown 35°Girdle: STK-THKPavilion 32.2°Culet: NoneDepth 65.8%

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: Oct 28
Current: $664 CAD|Low: $325 CAD|High: $1,705 CAD|Avg: $870 CAD|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9$325 CAD
Retailer 10$412 CAD
Retailer 5$464 CAD
Retailer 7$487 CAD
Retailer 1$664 CAD
Retailer 11$729 CAD
Retailer 12$778 CAD
Retailer 4$967 CAD
Retailer 2$1,171 CAD
Retailer 3$1,233 CAD
Retailer 6$1,452 CAD
Retailer 8$1,705 CAD

39 data points across 12 retailers

12 retailers$325 CAD to $2,533 CAD

A
Cheapest Retailer
-
$325 CAD
$232 USD
Final sale: no returns
A
Retailer 2
-
$412 CAD
HK$2,300 HKD
View
A
Retailer 3
-
$464 CAD
£261 GBP
View
B+
Retailer 4
-
$487 CAD
$348 USD
View
A
Retailer 5
-
$664 CAD
£374 GBP
View
A
Retailer 6
-
$729 CAD
$521 USD
View
A
Retailer 7
-
$778 CAD
$556 USD
View
B+
Retailer 8
-
$1,171 CAD
SGD 1,131 SGD
View
B+
Retailer 9
-
$1,233 CAD
$881 USD
View
B+
Retailer 10
-
$1,452 CAD
£817 GBP
View
B
Retailer 11
-
$1,705 CAD
$1,218 USD
View
Most Expensive
B
Brilliant Earth
22273641A · Oct 29
$2,533 CAD
$1,810 USD
View
11 more retailers have this diamond
Prices start from $325 CADSave up to $2,209 CAD

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
$325 CAD