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Cushion|Lab Grown|IGI

1.83ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG836639794

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836639794

Diamond specifications and retailer prices

From $1,026 NZD
£455 GBP
As of November 1, 2026
Save $5,646 NZD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,671 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836639794 or 836639794. Listed at 15 retailers as of October 31, 2026, with prices from $1,026 to $6,671, a $5,646 spread on the same certified stone. Brilliant Earth lists it at $6,671. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836639794
Dimensions7.99 × 6.51 × 4.49 mm
L/W Ratio1.23
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
7.99 mm6.51 mm1.83 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836639794
Side View
Table 62.0%Crown 33.2°Girdle: STK-THKPavilion 40°Culet: NoneDepth 69.0%

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: $6,671 NZD|Low: $1,026 NZD|High: $7,700 NZD|Avg: $3,422 NZD|-13.4%
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 1, 2026
Retailer 2$1,026 NZD
Retailer 15$1,173 NZD
Retailer 5$1,260 NZD
Retailer 17$1,395 NZD
Retailer 14$1,469 NZD
Retailer 10$1,509 NZD
Retailer 6$2,060 NZD
Retailer 12$2,259 NZD
Retailer 3$2,588 NZD
Retailer 13$3,583 NZD
Retailer 9$3,928 NZD
Retailer 8$4,629 NZD
Retailer 11$5,557 NZD
Retailer 4$5,802 NZD
Retailer 7$6,130 NZD
Retailer 16$6,299 NZD
Brilliant Earth$6,671 NZD

37 data points across 17 retailers

15 retailers$1,026 NZD to $6,671 NZD

A
Cheapest Retailer
-
$1,026 NZD
£455 GBP
A
Retailer 2
-
$1,173 NZD
$661 USD
View
A
Retailer 3
-
$1,260 NZD
$710 USD
View
A
Retailer 4
-
$1,322 NZD
$745 USD
View
A
Retailer 5
-
$1,395 NZD
$786 USD
View
A
Retailer 6
-
$1,509 NZD
€810 EUR
View
A
Retailer 7
-
$2,060 NZD
$1,161 USD
View
A
Retailer 8
-
$2,259 NZD
A$1,959 AUD
View
A
Retailer 9
-
$2,588 NZD
$1,459 USD
View
B+
Retailer 10
-
$3,583 NZD
£1,590 GBP
View
B+
Retailer 11
-
$5,557 NZD
A$4,818 AUD
View
Retailer 12
-
$5,802 NZD
$3,270 USD
View
Price last confirmed 11 days ago
B
Retailer 13
-
$6,130 NZD
$3,455 USD
View
B
Retailer 14
-
$6,299 NZD
$3,550 USD
View
Most Expensive
B
Brilliant Earth
21581090Y · Oct 31
$6,671 NZD
$3,760 USD
View
14 more retailers have this diamond
Prices start from $1,026 NZDSave up to $5,646 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
$1,026 NZD