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Cushion|Lab Grown|IGI

1.05ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG596345557

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG596345557

Diamond specifications and retailer prices

From $338 NZD
$190 USD
As of November 1, 2026
Save $1,421 NZD (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,758 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG596345557 or 596345557. Listed at 9 retailers as of November 1, 2026, with prices from $338 to $1,758, a $1,421 spread on the same certified stone. MOH London lists it at $1,758. 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

1.05
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG596345557
Dimensions7.05 × 5.30 × 3.66 mm
L/W Ratio1.33
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
7.05 mm5.30 mm1.05 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG596345557
Side View
Table 66.0%Crown 36.5°Girdle: MED-THKPavilion 37.4°Culet: NoneDepth 69.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,758 NZD|Low: $338 NZD|High: $1,781 NZD|Avg: $855 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$338 NZD
Retailer 7$620 NZD
Retailer 2$665 NZD
Retailer 5$674 NZD
Retailer 4$940 NZD
Retailer 3$960 NZD
Retailer 8$1,056 NZD
MOH London$1,758 NZD

27 data points across 8 retailers

9 retailers$338 NZD to $1,758 NZD

A
Cheapest Retailer
-
$338 NZD
$190 USD
Final sale: no returns
B+
Retailer 2
-
$620 NZD
$349 USD
View
Retailer 3
-
$656 NZD
£291 GBP
View
Price last confirmed 20 days ago
A
Retailer 4
-
$665 NZD
£295 GBP
View
B+
Retailer 5
-
$674 NZD
$379 USD
View
B+
Retailer 6
-
$940 NZD
$529 USD
View
B+
Retailer 7
-
$960 NZD
$540 USD
View
B
Retailer 8
-
$1,306 NZD
$735 USD
View
Most Expensive
B
MOH London
LG596345557 · Nov 1
$1,758 NZD
£779 GBP
View
8 more retailers have this diamond
Prices start from $338 NZDSave up to $1,421 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
1.05ct Cushion
$338 NZD