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Radiant|Lab Grown|IGI

0.51ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG818658686

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

Certificate IGI LG818658686

Diamond specifications and retailer prices

From €213 EUR
$238 USD
As of November 1, 2026
Save €892 EUR (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,105 EUR at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818658686 or 818658686. Listed at 15 retailers as of November 1, 2026, with prices from €213 to €1,105, a €892 spread on the same certified stone. Reve Diamonds lists it at €1,105. 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

0.51
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658686
Dimensions5.78 × 4.05 × 2.67 mm
L/W Ratio1.43
Girdle conditionFaceted
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
5.78 mm4.05 mm0.51 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658686
Side View
Table 70.0%Crown 29°Girdle: Slightly ThickPavilion 38.2°Culet: NoneDepth 65.9%

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: €437 EUR|Low: €213 EUR|High: €1,105 EUR|Avg: €568 EUR|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
November 1, 2026
Retailer 9€213 EUR
Retailer 10€326 EUR
Retailer 7€333 EUR
Retailer 3€397 EUR
Retailer 4€427 EUR
Retailer 1€437 EUR
Retailer 8€507 EUR
Retailer 6€762 EUR
Retailer 2€807 EUR
Retailer 5€948 EUR
Reve Diamonds€1,105 EUR

28 data points across 11 retailers

15 retailers€213 EUR to €1,105 EUR

Retailer 1
-
€191 EUR
$213 USD
Price last confirmed 24 days ago
A
Retailer 2
-
€213 EUR
$238 USD
View
Final sale: no returns
Retailer 3
-
€236 EUR
$264 USD
View
Price last confirmed 20 days ago
Retailer 4
-
€236 EUR
$264 USD
View
Price last confirmed 29 days ago
B+
Retailer 5
-
€326 EUR
$364 USD
View
B+
Retailer 6
-
€333 EUR
$372 USD
View
B+
Retailer 7
-
€397 EUR
View
B+
Retailer 8
-
€427 EUR
ZAR 7,709 ZAR
View
B+
Retailer 9
-
€437 EUR
£384 GBP
View
B
Retailer 10
-
€507 EUR
$567 USD
View
Retailer 11
-
€759 EUR
$848 USD
View
Price last confirmed 32 days ago
B
Retailer 12
-
€762 EUR
$851 USD
View
B
Retailer 13
-
€807 EUR
$901 USD
View
B
Retailer 14
-
€948 EUR
£834 GBP
View
Most Expensive
B
Reve Diamonds
A8A2A97B3 · Nov 1
€1,105 EUR
$1,234 USD
View
14 more retailers have this diamond
Prices start from €213 EURSave up to €892 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
0.51ct Radiant
€213 EUR