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Radiant|Lab Grown|IGI

1.86ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG799646888

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

Certificate IGI LG799646888

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)
25 retailers carry this diamond
Most expensive: €5,496 EUR at Brilliant Earth · As of September 28, 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 LG799646888 or 799646888. Listed at 25 retailers as of October 30, 2026, with a 600% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle41°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799646888
Dimensions8.63 × 6.02 × 4.17 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
8.63 mm6.02 mm1.86 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799646888
Side View
Table 67.0%Crown 41°Girdle: MediumPavilion 36°Culet: NoneDepth 69.3%

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: €1,749 EUR|-24.2%
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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 31, 2026
Retailer 14€578 EUR
Retailer 3€628 EUR
Retailer 13€646 EUR
Retailer 12€670 EUR
Retailer 18€760 EUR
Retailer 21€828 EUR
Retailer 5€901 EUR
Retailer 16€1,071 EUR
Retailer 22€1,096 EUR
Retailer 2€1,147 EUR
Retailer 20€1,232 EUR
Retailer 7€1,421 EUR
Retailer 6€1,558 EUR
Retailer 10€1,885 EUR
Retailer 8€2,087 EUR
Retailer 9€2,313 EUR
Retailer 17€2,360 EUR
Retailer 11€2,436 EUR
Retailer 19€2,840 EUR
Retailer 4€3,433 EUR
Brilliant Earth€4,046 EUR
Retailer 15€4,046 EUR

25 data points across 22 retailers

25 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
-
€646 EUR
$722 USD
View
Final sale: no returns
A
Retailer 4
-
€670 EUR
$749 USD
View
Retailer 5
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€715 EUR
$799 USD
View
Price last confirmed 15 days ago
A
Retailer 6
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€760 EUR
£669 GBP
View
A
Retailer 7
-
€828 EUR
$925 USD
View
A
Retailer 8
-
€901 EUR
$1,007 USD
View
A
Retailer 9
-
€1,071 EUR
£942 GBP
View
A
Retailer 10
-
€1,096 EUR
$1,224 USD
View
Retailer 11
-
€1,147 EUR
View
B+
Retailer 12
-
€1,232 EUR
ZAR 22,229 ZAR
View
B+
Retailer 13
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€1,421 EUR
$1,588 USD
View
B+
Retailer 14
-
€1,558 EUR
$1,741 USD
View
B+
Retailer 15
-
€1,885 EUR
$2,106 USD
View
B+
Retailer 16
-
€2,087 EUR
£1,836 GBP
View
B+
Retailer 17
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€2,204 EUR
$2,462 USD
View
B+
Retailer 18
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€2,313 EUR
$2,584 USD
View
B+
Retailer 19
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€2,360 EUR
$2,637 USD
View
B+
Retailer 20
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€2,436 EUR
SGD 3,678 SGD
View
B+
Retailer 21
-
€2,840 EUR
£2,498 GBP
View
B
Retailer 22
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€3,433 EUR
$3,835 USD
View
B
Retailer 23
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€4,046 EUR
$4,520 USD
View
Retailer 24
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€4,046 EUR
$4,520 USD
View
Price last confirmed 10 days ago
Most Expensive
Brilliant Earth
20575454A · Sep 28
€5,496 EUR
$6,140 USD
View
Price last confirmed 33 days ago
24 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