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Radiant|Lab Grown|IGI

3.09ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG710539520

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

Certificate IGI LG710539520

Diamond specifications and retailer prices

From $454 SGD
$355 USD
As of October 30, 2026
Save $4,903 SGD (92%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,356 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG710539520 or 710539520. Listed at 19 retailers as of October 30, 2026, with prices from $454 to $5,356, a $4,903 spread on the same certified stone. Brilliant Earth lists it at $5,356. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG710539520
Dimensions10.16 × 7.19 × 4.99 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.16 mm7.19 mm3.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG710539520
Side View
Table 67.0%Crown 43.1°Girdle: MED-STKPavilion 36.2°Culet: NoneDepth 69.4%

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: $5,356 SGD|Low: $423 SGD|High: $6,187 SGD|Avg: $1,526 SGD|-13.4%
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
Retailer 19
October 31, 2026
Retailer 13$454 SGD
Retailer 10$506 SGD
Retailer 5$525 SGD
Retailer 6$562 SGD
Retailer 15$562 SGD
Retailer 4$754 SGD
Retailer 14$769 SGD
Retailer 12$850 SGD
Retailer 7$968 SGD
Retailer 18$984 SGD
Retailer 2$1,012 SGD
Retailer 3$1,648 SGD
Retailer 17$1,806 SGD
Retailer 11$1,859 SGD
Retailer 9$1,989 SGD
Retailer 8$2,156 SGD
Retailer 16$2,208 SGD
Retailer 19$3,190 SGD
Brilliant Earth$5,356 SGD

33 data points across 19 retailers

19 retailers$454 SGD to $5,356 SGD

A
Cheapest Retailer
-
$454 SGD
$355 USD
A
Retailer 2
-
$506 SGD
$396 USD
View
Final sale: no returns
A
Retailer 3
-
$525 SGD
$411 USD
View
A
Retailer 4
-
$562 SGD
$440 USD
View
A
Retailer 5
-
$562 SGD
$440 USD
View
B+
Retailer 6
-
$754 SGD
$590 USD
View
A
Retailer 7
-
$769 SGD
£473 GBP
View
A
Retailer 8
-
$850 SGD
$665 USD
View
A
Retailer 9
-
$968 SGD
$757 USD
View
Retailer 10
-
$984 SGD
€733 EUR
View
Price last confirmed 7 days ago
A
Retailer 11
-
$1,012 SGD
£623 GBP
View
B+
Retailer 12
-
$1,648 SGD
$1,289 USD
View
B+
Retailer 13
-
$1,806 SGD
$1,413 USD
View
B+
Retailer 14
-
$1,859 SGD
$1,454 USD
View
B
Retailer 15
-
$1,989 SGD
$1,556 USD
View
B+
Retailer 16
-
$2,156 SGD
$1,687 USD
View
B+
Retailer 17
-
$2,208 SGD
£1,360 GBP
View
B
Retailer 18
-
$3,190 SGD
$2,495 USD
View
Most Expensive
B
Brilliant Earth
16226177A · Oct 30
$5,356 SGD
$4,190 USD
View
18 more retailers have this diamond
Prices start from $454 SGDSave up to $4,903 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
3.09ct Radiant
$454 SGD