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Radiant|Lab Grown|IGI

1.82ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG618465758

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG618465758

Diamond specifications and retailer prices

From $341 NZD
$192 USD
As of October 27, 2026
Save $2,929 NZD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,270 NZD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.82ct lab-grown radiant diamond

This 1.82ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG618465758 or 618465758. Listed at 10 retailers as of October 27, 2026, with prices from $341 to $3,270, a $2,929 spread on the same certified stone. Do Amore Diamonds lists it at $3,270. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.82
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618465758
Dimensions8.62 × 6.01 × 4.04 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.62 mm6.01 mm1.82 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618465758
Side View
Table 65.0%Crown 42.9°Girdle: THN-MEDPavilion 35.5°Culet: NoneDepth 67.2%

Caratlytics Score

How it works →
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 27
Current: $3,270 NZD|Low: $341 NZD|High: $3,412 NZD|Avg: $1,433 NZD|-4.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 7$341 NZD
Retailer 5$396 NZD
Retailer 12$398 NZD
Retailer 9$741 NZD
Retailer 3$919 NZD
Retailer 4$1,316 NZD
Retailer 6$1,367 NZD
Retailer 10$1,470 NZD
Retailer 8$1,504 NZD
Retailer 2$1,882 NZD
Retailer 11$2,382 NZD
Do Amore Diamonds$3,270 NZD

20 data points across 12 retailers

10 retailers$341 NZD to $3,270 NZD

A
Cheapest Retailer
-
$341 NZD
$192 USD
A
Retailer 2
-
$396 NZD
$223 USD
View
A
Retailer 3
-
$398 NZD
$224 USD
View
Final sale: no returns
B+
Retailer 4
-
$741 NZD
$417 USD
View
Retailer 5
-
$1,367 NZD
$769 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$1,470 NZD
$827 USD
View
B+
Retailer 7
-
$1,504 NZD
$846 USD
View
B+
Retailer 8
-
$1,882 NZD
£834 GBP
View
B
Retailer 9
-
$2,382 NZD
$1,340 USD
View
Most Expensive
B
Do Amore Diamonds
27-FA58A7D7E · Oct 30
$3,270 NZD
$1,840 USD
View
9 more retailers have this diamond
Prices start from $341 NZDSave up to $2,929 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
1.82ct Radiant
$341 NZD