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Cushion|Lab Grown|IGI

1.86ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG836616537

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836616537

Diamond specifications and retailer prices

From $1,279 NZD
$721 USD
As of October 30, 2026
Save $5,392 NZD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,671 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.86ct lab-grown cushion diamond

This 1.86ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836616537 or 836616537. Listed at 18 retailers as of October 30, 2026, with prices from $1,279 to $6,671, a $5,392 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

1.86
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836616537
Dimensions8.83 × 6.17 × 4.20 mm
L/W Ratio1.43
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
8.83 mm6.17 mm1.86 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836616537
Side View
Table 60.0%Crown 36.9°Girdle: STK-THKPavilion 39°Culet: NoneDepth 68.1%

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: $6,671 NZD|Low: $1,279 NZD|High: $9,546 NZD|Avg: $3,710 NZD|-30.1%
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
Retailer 18
October 31, 2026
Retailer 5$1,279 NZD
Retailer 9$1,407 NZD
Retailer 13$1,436 NZD
Retailer 16$1,606 NZD
Retailer 6$1,760 NZD
Retailer 11$2,077 NZD
Retailer 17$2,127 NZD
Retailer 2$2,230 NZD
Retailer 14$2,390 NZD
Retailer 3$2,826 NZD
Retailer 12$3,023 NZD
Retailer 7$4,269 NZD
Retailer 4$4,490 NZD
Retailer 8$4,634 NZD
Retailer 18$5,487 NZD
Retailer 10$6,033 NZD
Retailer 15$6,405 NZD
Brilliant Earth$6,671 NZD

16 data points across 18 retailers

18 retailers$1,279 NZD to $6,671 NZD

A
Cheapest Retailer
-
$1,279 NZD
$721 USD
Final sale: no returns
Retailer 2
-
$1,407 NZD
$793 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
$1,436 NZD
£637 GBP
View
A
Retailer 4
-
$1,606 NZD
$905 USD
View
A
Retailer 5
-
$1,760 NZD
$992 USD
View
A
Retailer 6
-
$2,077 NZD
£922 GBP
View
A
Retailer 7
-
$2,127 NZD
$1,199 USD
View
A
Retailer 8
-
$2,230 NZD
€1,197 EUR
View
A
Retailer 9
-
$2,390 NZD
ZAR 21,761 ZAR
View
A
Retailer 10
-
$2,826 NZD
$1,593 USD
View
A
Retailer 11
-
$3,023 NZD
$1,704 USD
View
B+
Retailer 12
-
$4,269 NZD
$2,406 USD
View
B+
Retailer 13
-
$4,490 NZD
$2,530 USD
View
B+
Retailer 14
-
$4,634 NZD
SGD 3,529 SGD
View
B+
Retailer 15
-
$5,487 NZD
£2,435 GBP
View
B
Retailer 16
-
$6,033 NZD
$3,400 USD
View
B
Retailer 17
-
$6,405 NZD
$3,610 USD
View
Most Expensive
B
Brilliant Earth
21861632A · Oct 30
$6,671 NZD
$3,760 USD
View
17 more retailers have this diamond
Prices start from $1,279 NZDSave up to $5,392 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
1.86ct Cushion
$1,279 NZD