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Cushion|Lab Grown|IGI

1.68ct G SI1 Cushion Lab Grown Diamond

GD • G/SI1 • IGI LG557236081

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG557236081

Diamond specifications and retailer prices

From $819 NZD
$461 USD
As of November 1, 2026
Save $3,428 NZD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,248 NZD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.68ct lab-grown cushion diamond

This 1.68ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG557236081 or 557236081. Listed at 11 retailers as of November 1, 2026, with prices from $819 to $4,248, a $3,428 spread on the same certified stone. Do Amore Diamonds lists it at $4,248. 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

1.68
Carat
G
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG557236081
Dimensions6.79 × 6.74 × 4.64 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
6.79 mm6.74 mm1.68 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG557236081
Side View
Table 63.0%Crown 34.4°Girdle: STK-VTKPavilion 40°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,248 NZD|Low: $666 NZD|High: $4,248 NZD|Avg: $1,625 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8$819 NZD
Retailer 5$826 NZD
Retailer 2$837 NZD
Retailer 9$983 NZD
Retailer 4$1,160 NZD
Retailer 7$1,493 NZD
Retailer 11$1,576 NZD
Retailer 3$2,103 NZD
Retailer 10$2,396 NZD
Retailer 6$2,625 NZD
Do Amore Diamonds$4,248 NZD

36 data points across 11 retailers

11 retailers$819 NZD to $4,248 NZD

B+
Cheapest Retailer
-
$819 NZD
$461 USD
B+
Retailer 2
-
$826 NZD
$465 USD
View
B+
Retailer 3
-
$837 NZD
£371 GBP
View
B+
Retailer 4
-
$983 NZD
$553 USD
View
B+
Retailer 5
-
$1,160 NZD
£514 GBP
View
B+
Retailer 6
-
$1,493 NZD
$840 USD
View
B+
Retailer 7
-
$1,576 NZD
$887 USD
View
B
Retailer 8
-
$2,103 NZD
$1,183 USD
View
C
Retailer 9
-
$2,396 NZD
$1,348 USD
View
C
Retailer 10
-
$2,625 NZD
£1,163 GBP
View
Most Expensive
C
Do Amore Diamonds
27-47D0A74F4 · Nov 2
$4,248 NZD
$2,390 USD
View
10 more retailers have this diamond
Prices start from $819 NZDSave up to $3,428 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.

B+
1.68ct Cushion
$819 NZD