Radiant|Lab Grown|IGI

1.18ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG818659433

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

Certificate IGI LG818659433

Diamond specifications and retailer prices

From $253 USD
As of October 30, 2026
Save $1,867 USD (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,240 USD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.18ct lab-grown radiant diamond

This 1.18ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818659433 or 818659433. Listed at 19 retailers as of October 30, 2026, with a 738% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818659433
Dimensions7.21 × 5.33 × 3.67 mm
L/W Ratio1.35
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
7.21 mm5.33 mm1.18 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818659433
Side View
Table 62.0%Crown 45.2°Girdle: Slightly ThickPavilion 36.9°Culet: NoneDepth 68.9%

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: Oct 30
Current: $2,240 USD|Low: $253 USD|High: $2,570 USD|Avg: $1,000 USD|-1.8%
Rare Carat
Retailer 2
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Retailer 5
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Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 19
October 30, 2026
Retailer 7$253 USD
Retailer 17$293 USD
Retailer 9$295 USD
Retailer 6$314 USD
Retailer 16$314 USD
Retailer 15$475 USD
Retailer 18$524 USD
Retailer 14$539 USD
Retailer 8$586 USD
Retailer 12$598 USD
Retailer 3$754 USD
Retailer 19$964 USD
Retailer 5$1,008 USD
Retailer 4$1,060 USD
Retailer 11$1,151 USD
Retailer 13$1,264 USD
Retailer 10$1,280 USD
Retailer 2$2,120 USD
Rare Carat$2,240 USD

36 data points across 19 retailers

19 retailers$253 USD to $2,120 USD

A
Cheapest Retailer
-
$253 USD
A
Retailer 2
-
$293 USD
View
A
Retailer 3
-
$295 USD
View
Final sale: no returns
A
Retailer 4
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$314 USD
View
A
Retailer 5
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$314 USD
View
A
Retailer 6
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$475 USD
View
A
Retailer 7
-
$524 USD
View
A
Retailer 8
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$539 USD
ZAR 8,707 ZAR
View
A
Retailer 9
-
$586 USD
€558 EUR
View
A
Retailer 10
-
$598 USD
£471 GBP
View
B+
Retailer 11
-
$754 USD
View
B+
Retailer 12
-
$964 USD
View
B+
Retailer 13
-
$1,008 USD
View
B+
Retailer 14
-
$1,060 USD
View
B+
Retailer 15
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$1,151 USD
SGD 1,556 SGD
View
B+
Retailer 16
-
$1,264 USD
£995 GBP
View
B
Retailer 17
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$1,280 USD
View
B
Retailer 18
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$2,120 USD
View
Most Expensive
Rare Carat
PD-231402 · Oct 18
$2,240 USD
View
Price last confirmed 11 days ago
18 more retailers have this diamond
Prices start from $253 USDSave up to $1,867 USD

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
$253 USD