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Radiant|Lab Grown|IGI

1.09ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG789604613

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

Certificate IGI LG789604613

Diamond specifications and retailer prices

From $276 SGD
$216 USD
As of October 30, 2026
Save $1,539 SGD (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,815 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG789604613 or 789604613. Listed at 21 retailers as of October 30, 2026, with prices from $276 to $1,815, a $1,539 spread on the same certified stone. Brilliant Earth lists it at $1,815. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789604613
Dimensions7.28 × 5.03 × 3.43 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
7.28 mm5.03 mm1.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789604613
Side View
Table 65.0%Crown 44°Girdle: Slightly ThickPavilion 35.1°Culet: NoneDepth 68.2%

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: Oct 30
Current: $1,815 SGD|Low: $276 SGD|High: $2,352 SGD|Avg: $775 SGD|-22.8%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 5$276 SGD
Retailer 9$277 SGD
Retailer 18$325 SGD
Retailer 8$359 SGD
Retailer 10$359 SGD
Retailer 13$511 SGD
Retailer 15$524 SGD
Retailer 11$533 SGD
Retailer 12$556 SGD
Retailer 3$710 SGD
Retailer 14$734 SGD
Retailer 16$745 SGD
Retailer 17$813 SGD
Retailer 7$830 SGD
Retailer 4$1,050 SGD
Retailer 2$1,427 SGD
Retailer 6$1,496 SGD
Brilliant Earth$1,815 SGD

38 data points across 18 retailers

21 retailers$276 SGD to $1,815 SGD

A
Cheapest Retailer
-
$276 SGD
$216 USD
Final sale: no returns
Retailer 2
-
$277 SGD
$217 USD
View
Price last confirmed 29 days ago
Retailer 3
-
$325 SGD
£200 GBP
View
Price last confirmed 15 days ago
Retailer 4
-
$336 SGD
$263 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$359 SGD
$281 USD
View
Price last confirmed 24 days ago
Retailer 6
-
$359 SGD
$281 USD
View
Price last confirmed 29 days ago
A
Retailer 7
-
$511 SGD
€381 EUR
View
A
Retailer 8
-
$524 SGD
ZAR 6,627 ZAR
View
A
Retailer 9
-
$533 SGD
$417 USD
View
A
Retailer 10
-
$556 SGD
£343 GBP
View
A
Retailer 11
-
$710 SGD
$555 USD
View
A
Retailer 12
-
$734 SGD
$574 USD
View
A
Retailer 13
-
$745 SGD
A$897 AUD
View
B+
Retailer 14
-
$813 SGD
$636 USD
View
A
Retailer 15
-
$830 SGD
View
B+
Retailer 16
-
$1,050 SGD
$822 USD
View
Retailer 17
-
$1,153 SGD
$902 USD
View
Price last confirmed 31 days ago
Retailer 18
-
$1,170 SGD
A$1,408 AUD
View
Price last confirmed 138 days ago
B+
Retailer 19
-
$1,427 SGD
£879 GBP
View
B
Retailer 20
-
$1,496 SGD
$1,170 USD
View
Most Expensive
B
Brilliant Earth
18991251A · Oct 31
$1,815 SGD
$1,420 USD
View
20 more retailers have this diamond
Prices start from $276 SGDSave up to $1,539 SGD

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
1.09ct Radiant
$276 SGD