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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 €176 EUR
$197 USD
As of November 2, 2026
Save €1,318 EUR (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,495 EUR at Brilliant Earth · As of October 31, 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 October 31, 2026, with prices from €176 to €1,495, a €1,318 spread on the same certified stone. Brilliant Earth lists it at €1,495. 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
Color
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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €1,495 EUR|Low: €169 EUR|High: €2,488 EUR|Avg: €580 EUR|-39.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 20
November 2, 2026
Retailer 4€176 EUR
Retailer 17€197 EUR
Retailer 10€205 EUR
Retailer 5€219 EUR
Retailer 12€219 EUR
Retailer 15€367 EUR
Retailer 13€378 EUR
Retailer 7€381 EUR
Retailer 2€400 EUR
Retailer 9€437 EUR
Retailer 16€535 EUR
Retailer 19€561 EUR
Retailer 8€642 EUR
Retailer 6€704 EUR
Retailer 11€752 EUR
Retailer 20€776 EUR
Retailer 3€826 EUR
Retailer 14€1,023 EUR
Retailer 18€1,222 EUR
Brilliant Earth€1,495 EUR

43 data points across 20 retailers

21 retailers€176 EUR to €1,495 EUR

A
Cheapest Retailer
-
€176 EUR
$197 USD
A
Retailer 2
-
€197 EUR
$220 USD
View
Final sale: no returns
A
Retailer 3
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€205 EUR
$229 USD
View
A
Retailer 4
-
€219 EUR
$245 USD
View
Retailer 5
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€219 EUR
$245 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
€367 EUR
View
A
Retailer 7
-
€378 EUR
ZAR 6,822 ZAR
View
A
Retailer 8
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€381 EUR
$426 USD
View
A
Retailer 9
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€400 EUR
£352 GBP
View
A
Retailer 10
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€437 EUR
$488 USD
View
A
Retailer 11
-
€535 EUR
A$920 AUD
View
A
Retailer 12
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€561 EUR
$627 USD
View
B+
Retailer 13
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€642 EUR
$717 USD
View
B+
Retailer 14
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€704 EUR
$786 USD
View
B+
Retailer 15
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€752 EUR
$840 USD
View
B+
Retailer 16
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€776 EUR
SGD 1,171 SGD
View
B+
Retailer 17
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€818 EUR
$914 USD
View
B+
Retailer 18
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€1,023 EUR
£900 GBP
View
Retailer 19
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€1,222 EUR
$1,365 USD
View
Price last confirmed 11 days ago
Retailer 20
-
€1,455 EUR
$1,626 USD
View
Most Expensive
B
Brilliant Earth
21417298A · Oct 31
€1,495 EUR
$1,670 USD
View
20 more retailers have this diamond
Prices start from €176 EURSave up to €1,318 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
€176 EUR