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Cushion|Lab Grown|IGI

1.60ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG612316374

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG612316374

Diamond specifications and retailer prices

From $425 NZD
$239 USD
As of November 1, 2026
Save $3,219 NZD (88%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,643 NZD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.6ct lab-grown cushion diamond

This 1.6ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG612316374 or 612316374. Listed at 6 retailers as of November 1, 2026, with prices from $425 to $3,643, a $3,219 spread on the same certified stone. Do Amore Diamonds lists it at $3,643. 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

1.60
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG612316374
Dimensions6.79 × 6.73 × 4.54 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 mm6.73 mm1.60 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG612316374
Side View
Table 57.0%Crown 35.2°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 67.5%

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 1
Current: $3,643 NZD|Low: $425 NZD|High: $3,643 NZD|Avg: $1,585 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6$425 NZD
Retailer 4$809 NZD
Retailer 8$865 NZD
Retailer 9$1,010 NZD
Retailer 7$1,230 NZD
Retailer 10$1,235 NZD
Retailer 5$1,587 NZD
Retailer 2$2,081 NZD
Retailer 3$2,151 NZD
Do Amore Diamonds$3,643 NZD

12 data points across 10 retailers

6 retailers$425 NZD to $3,643 NZD

A
Cheapest Retailer
-
$425 NZD
$239 USD
Final sale: no returns
B+
Retailer 2
-
$809 NZD
$455 USD
View
B
Retailer 3
-
$1,587 NZD
$893 USD
View
B
Retailer 4
-
$2,081 NZD
£922 GBP
View
B
Retailer 5
-
$2,151 NZD
$1,210 USD
View
Most Expensive
B
Do Amore Diamonds
27-048DC32D1 · Nov 2
$3,643 NZD
$2,050 USD
View
5 more retailers have this diamond
Prices start from $425 NZDSave up to $3,219 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
1.60ct Cushion
$425 NZD