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Cushion|Lab Grown|IGI

1.38ct G SI1 Cushion Lab Grown Diamond

VG • G/SI1 • IGI LG520296227

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

Certificate IGI LG520296227

Diamond specifications and retailer prices

From $718 NZD
As of November 6, 2026
Save $3,449 NZD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,167 NZD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.38ct lab-grown cushion diamond

This 1.38ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG520296227 or 520296227. Listed at 10 retailers as of November 6, 2026, with prices from $718 to $4,167, a $3,449 spread on the same certified stone. Do Amore Diamonds lists it at $4,167. 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

1.38
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520296227
Dimensions6.39 × 6.34 × 4.38 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
6.39 mm6.34 mm1.38 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520296227
Side View
Table 61.5%Crown 41°Girdle: MED-THKPavilion 40°Culet: NoneDepth 69.1%

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 6
Current: $4,167 NZD|Low: $700 NZD|High: $4,167 NZD|Avg: $1,577 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$718 NZD
Retailer 9$819 NZD
Retailer 7$906 NZD
Retailer 2$1,126 NZD
Retailer 4$1,218 NZD
Retailer 8$1,477 NZD
Retailer 10$1,892 NZD
Retailer 6$2,212 NZD
Retailer 3$2,390 NZD
Do Amore Diamonds$4,167 NZD

37 data points across 10 retailers

10 retailers$718 NZD to $4,167 NZD

A
Cheapest Retailer
-
$718 NZD
B+
Retailer 2
-
$819 NZD
View
B+
Retailer 3
-
$906 NZD
View
B+
Retailer 4
-
$1,126 NZD
View
Retailer 5
-
$1,218 NZD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$1,477 NZD
View
B
Retailer 7
-
$1,892 NZD
View
B
Retailer 8
-
$2,212 NZD
View
Retailer 9
-
$2,390 NZD
View
Price last confirmed 9 days ago
Most Expensive
C
Do Amore Diamonds
27-185464D76 · Nov 6
$4,167 NZD
$2,310 USD
View
9 more retailers have this diamond
Prices start from $718 NZDSave up to $3,449 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.

A
1.38ct Cushion
$718 NZD