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Cushion|Lab Grown|IGI

1.89ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG731569199

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG731569199

Diamond specifications and retailer prices

From $884 NZD
$498 USD
As of October 30, 2026
Save $6,001 NZD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,884 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731569199 or 731569199. Listed at 13 retailers as of October 30, 2026, with prices from $884 to $6,884, a $6,001 spread on the same certified stone. Brilliant Earth lists it at $6,884. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731569199
Dimensions8.21 × 6.49 × 4.54 mm
L/W Ratio1.27
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
8.21 mm6.49 mm1.89 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731569199
Side View
Table 61.0%Crown 33.2°Girdle: MED-THKPavilion 37.7°Culet: NoneDepth 70.0%

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: Oct 30
Current: $6,884 NZD|Low: $884 NZD|High: $8,197 NZD|Avg: $3,359 NZD|-16.0%
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
October 31, 2026
Retailer 5$884 NZD
Retailer 7$1,189 NZD
Retailer 13$1,286 NZD
Retailer 9$1,411 NZD
Retailer 2$1,537 NZD
Retailer 3$2,186 NZD
Retailer 6$2,292 NZD
Retailer 11$2,628 NZD
Retailer 10$3,619 NZD
Retailer 4$5,810 NZD
Retailer 12$5,811 NZD
Retailer 8$6,387 NZD
Brilliant Earth$6,884 NZD

31 data points across 13 retailers

13 retailers$884 NZD to $6,884 NZD

A
Cheapest Retailer
-
$884 NZD
$498 USD
Final sale: no returns
A
Retailer 2
-
$1,189 NZD
$670 USD
View
A
Retailer 3
-
$1,286 NZD
$725 USD
View
A
Retailer 4
-
$1,411 NZD
$795 USD
View
A
Retailer 5
-
$1,537 NZD
€825 EUR
View
A
Retailer 6
-
$2,186 NZD
$1,232 USD
View
A
Retailer 7
-
$2,292 NZD
A$1,987 AUD
View
A
Retailer 8
-
$2,628 NZD
$1,481 USD
View
B+
Retailer 9
-
$3,619 NZD
£1,606 GBP
View
Retailer 10
-
$5,810 NZD
A$5,038 AUD
View
Price last confirmed 23 days ago
Retailer 11
-
$5,811 NZD
$3,275 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$6,387 NZD
$3,600 USD
View
Most Expensive
B
Brilliant Earth
16087970Y · Oct 31
$6,884 NZD
$3,880 USD
View
12 more retailers have this diamond
Prices start from $884 NZDSave up to $6,001 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
$884 NZD