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Radiant|Lab Grown|IGI

1.68ct F IF Radiant Lab Grown Diamond

VG • F/IF • IGI LG816615263

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

Certificate IGI LG816615263

Diamond specifications and retailer prices

From €259 EUR
As of November 4, 2026
Save €2,039 EUR (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,299 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.68ct lab-grown radiant diamond

This 1.68ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816615263 or 816615263. Listed at 13 retailers as of November 4, 2026, with prices from €259 to €2,299, a €2,039 spread on the same certified stone. Brilliant Earth lists it at €2,299. 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

1.68
Carat
F
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615263
Dimensions8.54 × 5.84 × 3.82 mm
L/W Ratio1.46
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
8.54 mm5.84 mm1.68 ctF / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615263
Side View
Table 63.0%Crown 42.1°Girdle: MediumPavilion 35.6°Culet: NoneDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €2,299 EUR|Low: €208 EUR|High: €2,949 EUR|Avg: €1,023 EUR|-22.1%
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
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Retailer 17
November 5, 2026
Retailer 11€259 EUR
Retailer 17€359 EUR
Retailer 13€391 EUR
Retailer 4€419 EUR
Retailer 7€537 EUR
Retailer 3€538 EUR
Retailer 6€558 EUR
Retailer 16€742 EUR
Retailer 12€823 EUR
Retailer 14€934 EUR
Retailer 8€1,082 EUR
Retailer 9€1,088 EUR
Retailer 15€1,111 EUR
Retailer 10€1,266 EUR
Retailer 2€2,058 EUR
Retailer 5€2,107 EUR
Brilliant Earth€2,299 EUR

22 data points across 17 retailers

13 retailers€259 EUR to €2,299 EUR

A
Cheapest Retailer
-
€259 EUR
Final sale: no returns
A
Retailer 2
-
€359 EUR
View
B+
Retailer 3
-
€391 EUR
View
A
Retailer 4
-
€419 EUR
View
A
Retailer 5
-
€538 EUR
View
A
Retailer 6
-
€742 EUR
View
B+
Retailer 7
-
€823 EUR
View
B+
Retailer 8
-
€934 EUR
View
B+
Retailer 9
-
€1,111 EUR
View
B+
Retailer 10
-
€1,266 EUR
View
B
Retailer 11
-
€2,058 EUR
View
Retailer 12
-
€2,107 EUR
View
Price last confirmed 19 days ago
Most Expensive
B
Brilliant Earth
21730775Y · Nov 4
€2,299 EUR
$2,580 USD
View
12 more retailers have this diamond
Prices start from €259 EURSave up to €2,039 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
1.68ct Radiant
€259 EUR