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Radiant|Lab Grown|IGI

1.18ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG729590710

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

Certificate IGI LG729590710

Diamond specifications and retailer prices

From €175 EUR
As of November 4, 2026
Save €1,307 EUR (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,482 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.18ct lab-grown radiant diamond

This 1.18ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729590710 or 729590710. Listed at 21 retailers as of November 4, 2026, with prices from €175 to €1,482, a €1,307 spread on the same certified stone. Brilliant Earth lists it at €1,482. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.4°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729590710
Dimensions10.37 × 7.13 × 4.39 mm
L/W Ratio1.45
Culet sizePointed
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
10.37 mm7.13 mm1.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729590710
Side View
Table 65.0%Crown 47.4°Girdle: Slightly ThickPavilion 37.3°Culet: NoneDepth 72.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €1,482 EUR|Low: €168 EUR|High: €2,467 EUR|Avg: €578 EUR|-39.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 19
Retailer 20
November 5, 2026
Retailer 4€175 EUR
Retailer 18€195 EUR
Retailer 10€203 EUR
Retailer 5€217 EUR
Retailer 12€217 EUR
Retailer 17€363 EUR
Retailer 15€375 EUR
Retailer 7€378 EUR
Retailer 2€392 EUR
Retailer 9€433 EUR
Retailer 14€529 EUR
Retailer 13€562 EUR
Retailer 8€636 EUR
Retailer 6€698 EUR
Retailer 11€745 EUR
Retailer 20€769 EUR
Retailer 3€819 EUR
Retailer 16€1,014 EUR
Retailer 19€1,212 EUR
Brilliant Earth€1,482 EUR

44 data points across 20 retailers

21 retailers€175 EUR to €1,482 EUR

A
Cheapest Retailer
-
€175 EUR
A
Retailer 2
-
€195 EUR
View
Final sale: no returns
A
Retailer 3
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€203 EUR
View
A
Retailer 4
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€217 EUR
View
Retailer 5
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€217 EUR
View
Price last confirmed 11 days ago
A
Retailer 6
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€363 EUR
View
A
Retailer 7
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€375 EUR
View
A
Retailer 8
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€378 EUR
View
A
Retailer 9
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€392 EUR
View
A
Retailer 10
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€433 EUR
View
A
Retailer 11
-
€529 EUR
View
A
Retailer 12
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€562 EUR
View
B+
Retailer 13
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€636 EUR
View
B+
Retailer 14
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€698 EUR
View
B+
Retailer 15
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€745 EUR
View
B+
Retailer 16
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€769 EUR
View
B+
Retailer 17
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€811 EUR
View
B+
Retailer 18
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€1,014 EUR
View
Retailer 19
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€1,212 EUR
View
Price last confirmed 15 days ago
Retailer 20
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€1,442 EUR
View
Most Expensive
B
Brilliant Earth
21417298A · Nov 4
€1,482 EUR
$1,670 USD
View
20 more retailers have this diamond
Prices start from €175 EURSave up to €1,307 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
1.18ct Radiant
€175 EUR