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Cushion|Lab Grown|IGI

1.89ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846662378

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846662378

Diamond specifications and retailer prices

From $1,267 NZD
£562 GBP
As of October 30, 2026
Save $6,256 NZD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,523 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.89ct lab-grown cushion diamond

This 1.89ct 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 top-tier cut grade and certified by IGI LG846662378 or 846662378. Listed at 11 retailers as of October 30, 2026, with prices from $1,267 to $7,523, a $6,256 spread on the same certified stone. Brilliant Earth lists it at $7,523. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662378
Dimensions7.98 × 6.63 × 4.57 mm
L/W Ratio1.20
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
7.98 mm6.63 mm1.89 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662378
Side View
Table 61.0%Crown 35.4°Girdle: STK-THKPavilion 37.7°Culet: NoneDepth 68.9%

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: Oct 30
Current: $7,523 NZD|Low: $1,267 NZD|High: $7,523 NZD|Avg: $3,723 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 10$1,267 NZD
Retailer 6$1,437 NZD
Retailer 8$1,446 NZD
Retailer 9$1,843 NZD
Retailer 4$2,800 NZD
Retailer 2$2,897 NZD
Retailer 5$3,996 NZD
Retailer 7$4,358 NZD
Retailer 11$5,958 NZD
Retailer 3$6,512 NZD
Brilliant Earth$7,523 NZD

15 data points across 11 retailers

11 retailers$1,267 NZD to $7,523 NZD

A
Cheapest Retailer
-
$1,267 NZD
£562 GBP
A
Retailer 2
-
$1,437 NZD
$810 USD
View
A
Retailer 3
-
$1,446 NZD
$815 USD
View
A
Retailer 4
-
$1,843 NZD
$1,039 USD
View
A
Retailer 5
-
$2,800 NZD
€1,503 EUR
View
A
Retailer 6
-
$2,897 NZD
$1,633 USD
View
B+
Retailer 7
-
$3,996 NZD
$2,252 USD
View
B+
Retailer 8
-
$4,358 NZD
$2,456 USD
View
B+
Retailer 9
-
$5,958 NZD
£2,644 GBP
View
Retailer 10
-
$6,512 NZD
$3,670 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
22155369A · Oct 31
$7,523 NZD
$4,240 USD
View
10 more retailers have this diamond
Prices start from $1,267 NZDSave up to $6,256 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
1.89ct Cushion
$1,267 NZD