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Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG840634991

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634991

Diamond specifications and retailer prices

From $1,270 NZD
$716 USD
As of November 1, 2026
Save $6,430 NZD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,700 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.83ct lab-grown cushion diamond

This 1.83ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840634991 or 840634991. Listed at 17 retailers as of October 31, 2026, with prices from $1,270 to $7,700, a $6,430 spread on the same certified stone. Brilliant Earth lists it at $7,700. 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

1.83
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634991
Dimensions9.18 × 6.13 × 4.11 mm
L/W Ratio1.50
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
9.18 mm6.13 mm1.83 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634991
Side View
Table 59.0%Crown 34.6°Girdle: MED-THKPavilion 34.8°Culet: NoneDepth 67.0%

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 1
Current: $7,700 NZD|Low: $1,270 NZD|High: $10,397 NZD|Avg: $3,723 NZD|-25.9%
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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 4$1,270 NZD
Retailer 11$1,470 NZD
Retailer 15$1,606 NZD
Retailer 5$1,757 NZD
Retailer 16$2,124 NZD
Retailer 2$2,161 NZD
Retailer 12$2,215 NZD
Retailer 14$2,389 NZD
Retailer 17$2,732 NZD
Retailer 13$3,013 NZD
Retailer 6$4,258 NZD
Retailer 3$4,487 NZD
Retailer 7$4,602 NZD
Retailer 10$5,476 NZD
Retailer 9$6,244 NZD
Retailer 8$6,308 NZD
Brilliant Earth$7,700 NZD

15 data points across 17 retailers

17 retailers$1,270 NZD to $7,700 NZD

A
Cheapest Retailer
-
$1,270 NZD
$716 USD
Final sale: no returns
A
Retailer 2
-
$1,470 NZD
£652 GBP
View
A
Retailer 3
-
$1,606 NZD
$905 USD
View
A
Retailer 4
-
$1,757 NZD
$990 USD
View
A
Retailer 5
-
$2,124 NZD
$1,197 USD
View
A
Retailer 6
-
$2,161 NZD
£959 GBP
View
A
Retailer 7
-
$2,215 NZD
€1,189 EUR
View
A
Retailer 8
-
$2,389 NZD
ZAR 21,748 ZAR
View
A
Retailer 9
-
$2,732 NZD
$1,540 USD
View
B+
Retailer 10
-
$3,013 NZD
$1,698 USD
View
B+
Retailer 11
-
$4,258 NZD
$2,400 USD
View
B+
Retailer 12
-
$4,487 NZD
$2,529 USD
View
B+
Retailer 13
-
$4,602 NZD
SGD 3,505 SGD
View
B
Retailer 14
-
$5,476 NZD
£2,430 GBP
View
B
Retailer 15
-
$6,244 NZD
$3,519 USD
View
B
Retailer 16
-
$6,308 NZD
$3,555 USD
View
Most Expensive
B
Brilliant Earth
21861636A · Oct 31
$7,700 NZD
$4,340 USD
View
16 more retailers have this diamond
Prices start from $1,270 NZDSave up to $6,430 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
1.83ct Cushion
$1,270 NZD