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Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG839684867

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG839684867

Diamond specifications and retailer prices

From $2,508 NZD
£1,113 GBP
As of October 27, 2026
Save $8,852 NZD (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,361 NZD at Riddles Jewelry · As of October 27, 2026
View at Riddles Jewelry

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839684867 or 839684867. Listed at 19 retailers as of October 27, 2026, with prices from $2,508 to $11,361, a $8,852 spread on the same certified stone. Riddles Jewelry lists it at $11,361. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839684867
Dimensions8.60 × 6.39 × 4.27 mm
L/W Ratio1.35
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
8.60 mm6.39 mm1.83 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839684867
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 66.8%

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 27
Current: $3,361 NZD|Low: $2,466 NZD|High: $11,361 NZD|Avg: $5,450 NZD|+0.5%
Retailer 1
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Retailer 3
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Retailer 5
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Retailer 10
Retailer 11
Retailer 12
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Retailer 19
Riddles Jewelry
October 27, 2026
Retailer 12$2,508 NZD
Retailer 4$2,512 NZD
Retailer 16$2,520 NZD
Retailer 8$2,715 NZD
Retailer 7$2,999 NZD
Retailer 17$3,077 NZD
Retailer 13$3,185 NZD
Retailer 1$3,361 NZD
Retailer 9$3,783 NZD
Retailer 15$4,029 NZD
Retailer 5$5,415 NZD
Retailer 3$5,949 NZD
Retailer 18$6,111 NZD
Retailer 6$6,701 NZD
Retailer 2$7,071 NZD
Retailer 14$7,513 NZD
Retailer 11$7,729 NZD
Retailer 19$9,267 NZD
Retailer 10$10,662 NZD
Riddles Jewelry$11,361 NZD

22 data points across 20 retailers

19 retailers$2,508 NZD to $11,361 NZD

A
Cheapest Retailer
-
$2,508 NZD
£1,113 GBP
A
Retailer 2
-
$2,520 NZD
$1,420 USD
View
A
Retailer 3
-
$2,715 NZD
$1,530 USD
View
A
Retailer 4
-
$2,999 NZD
$1,690 USD
View
B+
Retailer 5
-
$3,077 NZD
$1,734 USD
View
A
Retailer 6
-
$3,185 NZD
£1,413 GBP
View
B+
Retailer 7
-
$3,361 NZD
€1,804 EUR
View
B+
Retailer 8
-
$3,783 NZD
$2,132 USD
View
Retailer 9
-
$4,029 NZD
ZAR 36,682 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$5,415 NZD
$3,052 USD
View
B
Retailer 11
-
$5,949 NZD
$3,353 USD
View
B
Retailer 12
-
$6,111 NZD
£2,712 GBP
View
B
Retailer 13
-
$6,701 NZD
CA$5,246 CAD
View
Retailer 14
-
$7,071 NZD
$3,985 USD
View
Price last confirmed 7 days ago
B
Retailer 15
-
$7,513 NZD
£3,334 GBP
View
B
Retailer 16
-
$7,729 NZD
$4,356 USD
View
Retailer 17
-
$9,267 NZD
$5,223 USD
View
Price last confirmed 11 days ago
B
Retailer 18
-
$10,662 NZD
$6,009 USD
View
Most Expensive
B
Riddles Jewelry
1988600944 · Oct 27
$11,361 NZD
$6,403 USD
View
18 more retailers have this diamond
Prices start from $2,508 NZDSave up to $8,852 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
$2,508 NZD