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Radiant|Lab Grown|IGI

1.65ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG818654486

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

Certificate IGI LG818654486

Diamond specifications and retailer prices

From €749 EUR
$840 USD
As of November 3, 2026
Save €4,190 EUR (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €4,939 EUR at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.65ct lab-grown radiant diamond

This 1.65ct 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 LG818654486 or 818654486. Listed at 8 retailers as of November 2, 2026, with prices from €749 to €4,939, a €4,190 spread on the same certified stone. Do Amore Diamonds lists it at €4,939. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.65
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654486
Dimensions6.89 × 6.75 × 4.48 mm
L/W Ratio1.02
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
6.89 mm6.75 mm1.65 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654486
Side View
Table 65.0%Crown 42°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 66.4%

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 3
Current: €4,939 EUR|Low: €749 EUR|High: €6,901 EUR|Avg: €2,728 EUR|-5.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8€749 EUR
Retailer 6€917 EUR
Retailer 5€1,057 EUR
Retailer 2€1,195 EUR
Retailer 3€2,799 EUR
Retailer 7€3,508 EUR
Retailer 4€3,673 EUR
Retailer 9€3,710 EUR
Do Amore Diamonds€4,939 EUR

20 data points across 9 retailers

8 retailers€749 EUR to €4,939 EUR

A
Cheapest Retailer
-
€749 EUR
$840 USD
A
Retailer 2
-
€917 EUR
$1,028 USD
View
B+
Retailer 3
-
€1,057 EUR
$1,186 USD
View
B+
Retailer 4
-
€1,195 EUR
View
B
Retailer 5
-
€2,799 EUR
£2,472 GBP
View
B
Retailer 6
-
€3,508 EUR
$3,935 USD
View
B
Retailer 7
-
€3,673 EUR
$4,120 USD
View
Most Expensive
B
Do Amore Diamonds
27-F1202F580 · Nov 2
€4,939 EUR
$5,540 USD
View
7 more retailers have this diamond
Prices start from €749 EURSave up to €4,190 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
1.65ct Radiant
€749 EUR