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Radiant|Lab Grown|IGI

3.15ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG813609580

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

Certificate IGI LG813609580

Diamond specifications and retailer prices

From $1,710 SGD
$1,338 USD
As of October 31, 2026
Save $13,835 SGD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,545 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.15ct lab-grown radiant diamond

This 3.15ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813609580 or 813609580. Listed at 19 retailers as of October 29, 2026, with prices from $1,710 to $15,545, a $13,835 spread on the same certified stone. Brilliant Earth lists it at $15,545. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.15
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813609580
Dimensions10.38 × 7.14 × 4.94 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.38 mm7.14 mm3.15 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813609580
Side View
Table 68.0%Crown 44.2°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 69.2%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $8,866 SGD|Low: $1,710 SGD|High: $8,866 SGD|Avg: $3,938 SGD
Retailer 1
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
October 31, 2026
Retailer 13$1,710 SGD
Retailer 5$2,001 SGD
Retailer 17$2,199 SGD
Retailer 14$2,551 SGD
Retailer 7$2,557 SGD
Retailer 11$2,760 SGD
Retailer 12$3,244 SGD
Retailer 16$3,409 SGD
Retailer 3$3,976 SGD
Retailer 10$4,063 SGD
Retailer 4$4,132 SGD
Retailer 9$4,325 SGD
Retailer 6$4,946 SGD
Retailer 8$5,747 SGD
Retailer 15$5,933 SGD
Retailer 2$6,235 SGD
Retailer 18$6,450 SGD
Retailer 1$8,866 SGD

19 data points across 18 retailers

19 retailers$1,710 SGD to $15,545 SGD

A+
Cheapest Retailer
-
$1,710 SGD
$1,338 USD
Final sale: no returns
A
Retailer 2
-
$2,001 SGD
$1,565 USD
View
A
Retailer 3
-
$2,199 SGD
$1,720 USD
View
A
Retailer 4
-
$2,551 SGD
£1,571 GBP
View
A
Retailer 5
-
$2,557 SGD
$2,000 USD
View
A
Retailer 6
-
$2,760 SGD
CA$2,999 CAD
View
A
Retailer 7
-
$3,244 SGD
€2,417 EUR
View
A
Retailer 8
-
$3,409 SGD
$2,667 USD
View
A
Retailer 9
-
$3,976 SGD
$3,110 USD
View
Retailer 10
-
$4,063 SGD
A$4,889 AUD
View
Price last confirmed 9 days ago
A
Retailer 11
-
$4,132 SGD
ZAR 52,215 ZAR
View
A
Retailer 12
-
$4,325 SGD
£2,664 GBP
View
B+
Retailer 13
-
$4,946 SGD
$3,869 USD
View
B+
Retailer 14
-
$5,747 SGD
£3,540 GBP
View
B+
Retailer 15
-
$5,933 SGD
View
B+
Retailer 16
-
$6,235 SGD
$4,878 USD
View
B+
Retailer 17
-
$6,450 SGD
$5,045 USD
View
B+
Retailer 18
-
$8,866 SGD
A$10,670 AUD
View
Most Expensive
B
Brilliant Earth
20507935A · Oct 29
$15,545 SGD
$12,160 USD
View
18 more retailers have this diamond
Prices start from $1,710 SGDSave up to $13,835 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+
3.15ct Radiant
$1,710 SGD