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Cushion|Lab Grown|IGI

1.60ct D SI1 Cushion Lab Grown Diamond

GD • D/SI1 • IGI LG566321975

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG566321975

Diamond specifications and retailer prices

From $1,015 NZD
$572 USD
As of November 1, 2026
Save $3,704 NZD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,719 NZD at MOH London · As of October 29, 2026
View at MOH London

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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG566321975 or 566321975. Listed at 8 retailers as of October 29, 2026, with prices from $1,015 to $4,719, a $3,704 spread on the same certified stone. MOH London lists it at $4,719. 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

1.60
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG566321975
Dimensions6.95 × 6.62 × 4.14 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.95 mm6.62 mm1.60 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG566321975
Side View
Table 61.0%Crown 32.2°Girdle: MED-THKPavilion 34.9°Culet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $4,719 NZD|Low: $726 NZD|High: $4,750 NZD|Avg: $1,895 NZD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$1,015 NZD
Retailer 8$1,153 NZD
Retailer 7$1,366 NZD
Retailer 3$1,638 NZD
Retailer 2$1,727 NZD
Retailer 5$1,746 NZD
Retailer 4$2,147 NZD
MOH London$4,719 NZD

41 data points across 8 retailers

8 retailers$1,015 NZD to $4,719 NZD

B+
Cheapest Retailer
-
$1,015 NZD
$572 USD
Final sale: no returns
B+
Retailer 2
-
$1,153 NZD
$650 USD
View
B
Retailer 3
-
$1,366 NZD
$770 USD
View
B
Retailer 4
-
$1,638 NZD
€879 EUR
View
B
Retailer 5
-
$1,727 NZD
£766 GBP
View
B
Retailer 6
-
$1,746 NZD
$984 USD
View
Retailer 7
-
$2,147 NZD
$1,210 USD
View
Price last confirmed 11 days ago
Most Expensive
B
MOH London
LG566321975 · Oct 29
$4,719 NZD
£2,094 GBP
View
7 more retailers have this diamond
Prices start from $1,015 NZDSave up to $3,704 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+
1.60ct Cushion
$1,015 NZD