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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 $461 USD
As of October 30, 2026
Save $1,929 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,390 USD at Do Amore Diamonds · As of October 31, 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 October 30, 2026, with prices from $461 to $2,390, a $1,929 spread on the same certified stone. Do Amore Diamonds lists it at $2,390. 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
Color
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: Oct 30
Current: $2,390 USD|Low: $375 USD|High: $2,390 USD|Avg: $905 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8$461 USD
Retailer 5$465 USD
Retailer 2$473 USD
Retailer 9$553 USD
Retailer 4$653 USD
Retailer 7$840 USD
Retailer 11$887 USD
Retailer 3$1,183 USD
Retailer 10$1,348 USD
Retailer 6$1,477 USD
Do Amore Diamonds$2,390 USD

36 data points across 11 retailers

11 retailers$461 USD to $2,390 USD

B+
Cheapest Retailer
-
$461 USD
B+
Retailer 2
-
$465 USD
View
B+
Retailer 3
-
$473 USD
£372 GBP
View
B+
Retailer 4
-
$553 USD
View
B+
Retailer 5
-
$653 USD
£514 GBP
View
Retailer 6
-
$840 USD
View
Price last confirmed 13 days ago
B+
Retailer 7
-
$887 USD
View
B
Retailer 8
-
$1,183 USD
View
C
Retailer 9
-
$1,348 USD
View
C
Retailer 10
-
$1,477 USD
£1,163 GBP
View
Most Expensive
C
Do Amore Diamonds
27-47D0A74F4 · Oct 31
$2,390 USD
View
10 more retailers have this diamond
Prices start from $461 USDSave up to $1,929 USD

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
$461 USD