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Cushion|Lab Grown|IGI

1.00ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG825655920

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

Certificate IGI LG825655920

Diamond specifications and retailer prices

From $713 NZD
As of November 3, 2026
Save $3,438 NZD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,151 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG825655920 or 825655920. Listed at 14 retailers as of November 3, 2026, with prices from $713 to $4,151, a $3,438 spread on the same certified stone. Brilliant Earth lists it at $4,151. 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

1.00
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655920
Dimensions5.87 × 5.81 × 3.87 mm
L/W Ratio1.01
Girdle conditionFaceted
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
5.87 mm5.81 mm1.00 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655920
Side View
Table 61.0%Crown 35°Girdle: MED-THKPavilion 40°Culet: NoneDepth 66.6%

Caratlytics Score

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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 3
Current: $4,151 NZD|Low: $713 NZD|High: $4,612 NZD|Avg: $1,802 NZD|-10.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 3$713 NZD
Retailer 7$761 NZD
Retailer 6$797 NZD
Retailer 9$1,056 NZD
Retailer 14$1,056 NZD
Retailer 4$1,265 NZD
Retailer 12$1,270 NZD
Retailer 2$1,315 NZD
Retailer 11$1,362 NZD
Retailer 5$2,359 NZD
Retailer 8$2,459 NZD
Retailer 13$3,019 NZD
Retailer 10$3,089 NZD
Brilliant Earth$4,151 NZD

35 data points across 14 retailers

14 retailers$713 NZD to $4,151 NZD

A
Cheapest Retailer
-
$713 NZD
Final sale: no returns
A
Retailer 2
-
$761 NZD
View
Retailer 3
-
$797 NZD
View
Price last confirmed 24 days ago
A
Retailer 4
-
$1,056 NZD
View
A
Retailer 5
-
$1,056 NZD
View
A
Retailer 6
-
$1,265 NZD
View
A
Retailer 7
-
$1,270 NZD
View
A
Retailer 8
-
$1,315 NZD
View
A
Retailer 9
-
$1,362 NZD
View
B
Retailer 10
-
$2,359 NZD
View
B
Retailer 11
-
$2,459 NZD
View
B
Retailer 12
-
$3,019 NZD
View
B
Retailer 13
-
$3,089 NZD
View
Most Expensive
B
Brilliant Earth
21581004A · Nov 4
$4,151 NZD
$2,340 USD
View
13 more retailers have this diamond
Prices start from $713 NZDSave up to $3,438 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
1.00ct Cushion
$713 NZD