CaratHunter
Plans
Cushion|Lab Grown|IGI

1.67ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG520295377

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG520295377

Diamond specifications and retailer prices

From $497 AUD
$349 USD
As of October 25, 2026
Save $3,062 AUD (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,559 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.67ct lab-grown cushion diamond

This 1.67ct 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 very-good cut grade and certified by IGI LG520295377 or 520295377. Listed at 11 retailers as of October 25, 2026, with prices from $497 to $3,559, a $3,062 spread on the same certified stone. Do Amore Diamonds lists it at $3,559. 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

1.67
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520295377
Dimensions6.77 × 6.70 × 4.66 mm
L/W Ratio1.01
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
6.77 mm6.70 mm1.67 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520295377
Side View
Table 62.5%Crown 35°Girdle: STK-VTKPavilion 39.8°Culet: NoneDepth 69.6%

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 25
Current: $3,559 AUD|Low: $391 AUD|High: $3,559 AUD|Avg: $1,319 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 8$497 AUD
Retailer 7$622 AUD
Retailer 5$626 AUD
Retailer 9$818 AUD
Retailer 2$975 AUD
Retailer 6$1,253 AUD
Retailer 11$1,307 AUD
Retailer 3$1,788 AUD
Retailer 10$1,993 AUD
Retailer 4$2,207 AUD
Do Amore Diamonds$3,559 AUD

35 data points across 11 retailers

11 retailers$497 AUD to $3,559 AUD

A
Cheapest Retailer
-
$497 AUD
$349 USD
A
Retailer 2
-
$622 AUD
$437 USD
View
B+
Retailer 3
-
$626 AUD
$440 USD
View
B+
Retailer 4
-
$818 AUD
$575 USD
View
B+
Retailer 5
-
$975 AUD
£539 GBP
View
B+
Retailer 6
-
$1,253 AUD
$880 USD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
$1,307 AUD
$918 USD
View
B
Retailer 8
-
$1,788 AUD
$1,256 USD
View
B
Retailer 9
-
$1,993 AUD
$1,400 USD
View
B
Retailer 10
-
$2,207 AUD
£1,221 GBP
View
Most Expensive
C
Do Amore Diamonds
27-2807F5B39 · Oct 29
$3,559 AUD
$2,500 USD
View
10 more retailers have this diamond
Prices start from $497 AUDSave up to $3,062 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
1.67ct Cushion
$497 AUD