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Radiant|Lab Grown|IGI

3.03ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG685590258

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

Certificate IGI LG685590258

Diamond specifications and retailer prices

From $413 SGD
As of November 6, 2026
Save $2,195 SGD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,608 SGD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 3.03ct lab-grown radiant diamond

This 3.03ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685590258 or 685590258. Listed at 16 retailers as of November 1, 2026, with prices from $413 to $2,608, a $2,195 spread on the same certified stone. Rare Carat lists it at $2,608. 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

3.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685590258
Dimensions10.36 × 7.04 × 4.81 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.36 mm7.04 mm3.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685590258
Side View
Table 64.0%Crown 45.5°Girdle: MediumPavilion 35.7°Culet: NoneDepth 68.3%

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 6
Current: $2,608 SGD|Low: $413 SGD|High: $6,498 SGD|Avg: $1,719 SGD|-30.4%
Rare Carat
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
November 7, 2026
Retailer 7$413 SGD
Retailer 14$479 SGD
Retailer 4$513 SGD
Retailer 6$574 SGD
Retailer 11$623 SGD
Retailer 2$711 SGD
Retailer 17$830 SGD
Retailer 10$834 SGD
Retailer 12$905 SGD
Retailer 16$920 SGD
Retailer 3$1,248 SGD
Retailer 15$1,502 SGD
Retailer 5$1,647 SGD
Retailer 13$2,047 SGD
Rare Carat$2,608 SGD
Retailer 8$4,898 SGD
Retailer 9$6,498 SGD

12 data points across 17 retailers

16 retailers$413 SGD to $2,608 SGD

A
Cheapest Retailer
-
$413 SGD
A
Retailer 2
-
$479 SGD
View
A
Retailer 3
-
$513 SGD
View
A
Retailer 4
-
$574 SGD
View
A
Retailer 5
-
$623 SGD
View
A
Retailer 6
-
$711 SGD
View
B+
Retailer 7
-
$830 SGD
View
A
Retailer 8
-
$834 SGD
View
A
Retailer 9
-
$905 SGD
View
A
Retailer 10
-
$920 SGD
View
A
Retailer 11
-
$1,248 SGD
View
B+
Retailer 12
-
$1,502 SGD
View
B+
Retailer 13
-
$1,647 SGD
View
B+
Retailer 14
-
$2,047 SGD
View
B+
Retailer 15
-
$2,090 SGD
View
Most Expensive
B
Rare Carat
KI2585902KF685 · Nov 1
$2,608 SGD
$2,035 USD
View
15 more retailers have this diamond
Prices start from $413 SGDSave up to $2,195 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
3.03ct Radiant
$413 SGD