CaratHunter
Plans
Cushion|Lab Grown|IGI

1.89ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG836607909

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836607909

Diamond specifications and retailer prices

From $1,311 NZD
$739 USD
As of October 30, 2026
Save $6,673 NZD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,984 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 LG836607909 or 836607909. Listed at 17 retailers as of October 30, 2026, with prices from $1,311 to $7,984, a $6,673 spread on the same certified stone. Brilliant Earth lists it at $7,984. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836607909
Dimensions9.08 × 6.22 × 4.18 mm
L/W Ratio1.46
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
9.08 mm6.22 mm1.89 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836607909
Side View
Table 62.0%Crown 34°Girdle: MED-THKPavilion 35.9°Culet: NoneDepth 67.2%

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: $7,984 NZD|Low: $1,311 NZD|High: $10,752 NZD|Avg: $3,750 NZD|-25.7%
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 4$1,311 NZD
Retailer 9$1,441 NZD
Retailer 13$1,520 NZD
Retailer 11$1,659 NZD
Retailer 2$2,125 NZD
Retailer 15$2,188 NZD
Retailer 10$2,284 NZD
Retailer 14$2,463 NZD
Retailer 16$2,899 NZD
Retailer 12$3,112 NZD
Retailer 3$4,164 NZD
Retailer 5$4,398 NZD
Retailer 17$4,626 NZD
Retailer 6$4,746 NZD
Retailer 8$5,685 NZD
Retailer 7$6,521 NZD
Brilliant Earth$7,984 NZD

28 data points across 17 retailers

17 retailers$1,311 NZD to $7,984 NZD

A
Cheapest Retailer
-
$1,311 NZD
$739 USD
Final sale: no returns
Retailer 2
-
$1,441 NZD
$812 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
$1,520 NZD
£675 GBP
View
A
Retailer 4
-
$1,659 NZD
$935 USD
View
A
Retailer 5
-
$2,125 NZD
£943 GBP
View
A
Retailer 6
-
$2,188 NZD
$1,233 USD
View
A
Retailer 7
-
$2,284 NZD
€1,226 EUR
View
A
Retailer 8
-
$2,463 NZD
ZAR 22,430 ZAR
View
A
Retailer 9
-
$2,899 NZD
$1,634 USD
View
B+
Retailer 10
-
$3,112 NZD
$1,754 USD
View
B+
Retailer 11
-
$4,164 NZD
£1,848 GBP
View
B+
Retailer 12
-
$4,398 NZD
$2,479 USD
View
B+
Retailer 13
-
$4,626 NZD
$2,607 USD
View
B+
Retailer 14
-
$4,746 NZD
SGD 3,615 SGD
View
Retailer 15
-
$5,685 NZD
£2,523 GBP
View
Price last confirmed 14 days ago
Retailer 16
-
$6,521 NZD
$3,675 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21640937A · Oct 31
$7,984 NZD
$4,500 USD
View
16 more retailers have this diamond
Prices start from $1,311 NZDSave up to $6,673 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
$1,311 NZD