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Radiant|Lab Grown|IGI

1.51ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG818644542

Shape and cutting style on the report: Cut cornered rectangular antique cut

Certificate IGI LG818644542

Diamond specifications and retailer prices

From €1,045 EUR
$1,168 USD
As of October 30, 2026
Save €3,199 EUR (75%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,245 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818644542 or 818644542. Listed at 18 retailers as of October 30, 2026, with prices from €1,045 to €4,245, a €3,199 spread on the same certified stone. Taylor and Hart lists it at €4,245. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644542
Dimensions7.44 × 6.60 × 3.82 mm
L/W Ratio1.13
Culet sizeLarge
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
7.44 mm6.60 mm1.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644542
Side View
Table 71.0%Crown 36.2°Girdle: STK-THKPavilion 40.6°Culet: LargeDepth 57.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,758 EUR|Low: €1,003 EUR|High: €4,060 EUR|Avg: €2,311 EUR|-1.1%
Retailer 1
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
November 1, 2026
Retailer 11€1,045 EUR
Retailer 4€1,137 EUR
Retailer 10€1,171 EUR
Retailer 12€1,212 EUR
Retailer 9€1,369 EUR
Retailer 1€1,758 EUR
Retailer 14€1,925 EUR
Retailer 7€2,228 EUR
Retailer 2€2,273 EUR
Retailer 3€2,389 EUR
Retailer 6€3,342 EUR
Retailer 13€3,510 EUR
Retailer 8€3,900 EUR
Retailer 5€4,060 EUR

45 data points across 14 retailers

18 retailers€1,045 EUR to €4,245 EUR

B+
Cheapest Retailer
-
€1,045 EUR
$1,168 USD
B+
Retailer 2
-
€1,137 EUR
$1,270 USD
View
Retailer 3
-
€1,171 EUR
$1,308 USD
View
Price last confirmed 21 days ago
Final sale: no returns
B+
Retailer 4
-
€1,173 EUR
$1,310 USD
View
Retailer 5
-
€1,212 EUR
$1,354 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
€1,212 EUR
$1,354 USD
View
B+
Retailer 7
-
€1,369 EUR
$1,530 USD
View
B+
Retailer 8
-
€1,758 EUR
£1,547 GBP
View
B
Retailer 9
-
€1,925 EUR
$2,151 USD
View
B
Retailer 10
-
€2,228 EUR
ZAR 40,220 ZAR
View
B
Retailer 11
-
€2,273 EUR
$2,539 USD
View
B
Retailer 12
-
€2,389 EUR
$2,669 USD
View
B
Retailer 13
-
€3,342 EUR
£2,940 GBP
View
B
Retailer 14
-
€3,510 EUR
$3,921 USD
View
B
Retailer 15
-
€3,832 EUR
$4,281 USD
View
B
Retailer 16
-
€3,900 EUR
£3,431 GBP
View
B
Retailer 17
-
€4,060 EUR
SGD 6,130 SGD
View
Most Expensive
B
Taylor and Hart
APY38XB · Oct 31
€4,245 EUR
$4,742 USD
View
17 more retailers have this diamond
Prices start from €1,045 EURSave up to €3,199 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.

B+
1.51ct Radiant
€1,045 EUR