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Radiant|Lab Grown|IGI

1.86ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG833668463

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

Certificate IGI LG833668463

Diamond specifications and retailer prices

From $1,984 NZD
$1,118 USD
As of November 1, 2026
Save $6,615 NZD (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,598 NZD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.86ct lab-grown radiant diamond

This 1.86ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG833668463 or 833668463. Listed at 9 retailers as of October 31, 2026, with prices from $1,984 to $8,598, a $6,615 spread on the same certified stone. Blue Nile lists it at $8,598. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.86
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833668463
Dimensions8.93 × 6.05 × 4.14 mm
L/W Ratio1.48
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
8.93 mm6.05 mm1.86 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833668463
Side View
Table 64.0%Crown 44°Girdle: MediumPavilion 36.8°Culet: NoneDepth 68.4%

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: Nov 1
Current: $8,598 NZD|Low: $1,984 NZD|High: $10,429 NZD|Avg: $4,690 NZD|-17.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9$1,984 NZD
Retailer 2$2,167 NZD
Retailer 3$2,236 NZD
Retailer 7$2,275 NZD
Retailer 6$2,837 NZD
Retailer 8$4,817 NZD
Retailer 4$5,915 NZD
Retailer 5$7,967 NZD
Blue Nile$8,598 NZD

29 data points across 9 retailers

9 retailers$1,984 NZD to $8,598 NZD

A
Cheapest Retailer
-
$1,984 NZD
$1,118 USD
A
Retailer 2
-
$2,167 NZD
€1,163 EUR
View
B+
Retailer 3
-
$2,236 NZD
£992 GBP
View
A
Retailer 4
-
$2,275 NZD
$1,282 USD
View
B+
Retailer 5
-
$2,837 NZD
$1,599 USD
View
B
Retailer 6
-
$4,817 NZD
$2,715 USD
View
B
Retailer 7
-
$5,915 NZD
£2,625 GBP
View
Retailer 8
-
$7,967 NZD
$4,490 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Blue Nile
30305170 · Oct 31
$8,598 NZD
$4,846 USD
View
8 more retailers have this diamond
Prices start from $1,984 NZDSave up to $6,615 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 Radiant
$1,984 NZD