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Radiant|Lab Grown|IGI

1.86ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG825660146

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

Certificate IGI LG825660146

Diamond specifications and retailer prices

From €578 EUR
$646 USD
As of October 30, 2026
Save €3,468 EUR (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €4,046 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG825660146 or 825660146. Listed at 22 retailers as of October 30, 2026, with prices from €578 to €4,046, a €3,468 spread on the same certified stone. Brilliant Earth lists it at €4,046. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825660146
Dimensions8.58 × 6.01 × 4.13 mm
L/W Ratio1.43
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
8.58 mm6.01 mm1.86 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825660146
Side View
Table 65.0%Crown 45.2°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 68.7%

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 30
Current: €4,046 EUR|Low: €578 EUR|High: €5,335 EUR|Avg: €1,853 EUR|-24.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 11
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Retailer 21
October 31, 2026
Retailer 11€578 EUR
Retailer 20€628 EUR
Retailer 10€670 EUR
Retailer 7€674 EUR
Retailer 16€828 EUR
Retailer 3€901 EUR
Retailer 13€1,071 EUR
Retailer 17€1,096 EUR
Retailer 2€1,147 EUR
Retailer 15€1,232 EUR
Retailer 5€1,421 EUR
Retailer 4€1,558 EUR
Retailer 8€1,885 EUR
Retailer 6€2,087 EUR
Retailer 19€2,204 EUR
Retailer 12€2,313 EUR
Retailer 9€2,436 EUR
Retailer 18€2,828 EUR
Retailer 21€3,433 EUR
Brilliant Earth€4,046 EUR
Retailer 14€4,046 EUR

32 data points across 21 retailers

22 retailers€578 EUR to €4,046 EUR

A
Cheapest Retailer
-
€578 EUR
$646 USD
A
Retailer 2
-
€628 EUR
$702 USD
View
A
Retailer 3
-
€670 EUR
$749 USD
View
A
Retailer 4
-
€674 EUR
$753 USD
View
Final sale: no returns
Retailer 5
-
€715 EUR
$799 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
€828 EUR
$925 USD
View
A
Retailer 7
-
€901 EUR
$1,007 USD
View
A
Retailer 8
-
€1,071 EUR
£942 GBP
View
A
Retailer 9
-
€1,096 EUR
$1,224 USD
View
A
Retailer 10
-
€1,147 EUR
View
B+
Retailer 11
-
€1,232 EUR
ZAR 22,229 ZAR
View
B+
Retailer 12
-
€1,421 EUR
$1,588 USD
View
B+
Retailer 13
-
€1,558 EUR
$1,741 USD
View
B+
Retailer 14
-
€1,885 EUR
$2,106 USD
View
B+
Retailer 15
-
€2,087 EUR
£1,836 GBP
View
B+
Retailer 16
-
€2,204 EUR
$2,462 USD
View
B+
Retailer 17
-
€2,313 EUR
$2,584 USD
View
B+
Retailer 18
-
€2,436 EUR
SGD 3,678 SGD
View
B
Retailer 19
-
€2,828 EUR
£2,488 GBP
View
B
Retailer 20
-
€3,433 EUR
$3,835 USD
View
Retailer 21
-
€4,046 EUR
$4,520 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21434150A · Oct 30
€4,046 EUR
$4,520 USD
View
21 more retailers have this diamond
Prices start from €578 EURSave up to €3,468 EUR

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
€578 EUR