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Radiant|Lab Grown|IGI

3.12ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG731557448

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

Certificate IGI LG731557448

Diamond specifications and retailer prices

From $1,250 SGD
$978 USD
As of October 30, 2026
Save $9,846 SGD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,097 SGD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 3.12ct lab-grown radiant diamond

This 3.12ct 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 LG731557448 or 731557448. Listed at 17 retailers as of October 30, 2026, with prices from $1,250 to $11,097, a $9,846 spread on the same certified stone. Do Amore Diamonds lists it at $11,097. 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

3.12
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731557448
Dimensions10.23 × 7.31 × 4.87 mm
L/W Ratio1.40
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
10.23 mm7.31 mm3.12 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731557448
Side View
Table 64.0%Crown 44.3°Girdle: Slightly ThickPavilion 34.3°Culet: NoneDepth 66.6%

Caratlytics Score

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A+
Exceptional
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: $11,097 SGD|Low: $1,250 SGD|High: $13,398 SGD|Avg: $4,448 SGD|-17.2%
Do Amore Diamonds
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
October 31, 2026
Retailer 11$1,250 SGD
Retailer 17$1,387 SGD
Retailer 6$1,668 SGD
Retailer 10$1,680 SGD
Retailer 9$1,757 SGD
Retailer 16$2,362 SGD
Retailer 3$2,659 SGD
Retailer 15$2,999 SGD
Retailer 12$3,012 SGD
Retailer 2$3,124 SGD
Retailer 4$3,761 SGD
Retailer 14$4,142 SGD
Retailer 13$5,455 SGD
Retailer 5$6,910 SGD
Retailer 7$8,894 SGD
Retailer 8$10,828 SGD
Do Amore Diamonds$11,097 SGD

35 data points across 17 retailers

17 retailers$1,250 SGD to $11,097 SGD

A+
Cheapest Retailer
-
$1,250 SGD
$978 USD
A
Retailer 2
-
$1,387 SGD
$1,085 USD
View
A
Retailer 3
-
$1,668 SGD
$1,305 USD
View
A
Retailer 4
-
$1,680 SGD
$1,314 USD
View
A
Retailer 5
-
$1,757 SGD
$1,374 USD
View
Final sale: no returns
A
Retailer 6
-
$2,362 SGD
$1,848 USD
View
Retailer 7
-
$2,659 SGD
€1,981 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
$2,999 SGD
$2,346 USD
View
A
Retailer 9
-
$3,012 SGD
$2,356 USD
View
A
Retailer 10
-
$3,124 SGD
$2,444 USD
View
Retailer 11
-
$3,761 SGD
A$4,526 AUD
View
Price last confirmed 9 days ago
A
Retailer 12
-
$4,142 SGD
$3,240 USD
View
B+
Retailer 13
-
$5,455 SGD
£3,360 GBP
View
Retailer 14
-
$6,910 SGD
$5,405 USD
View
Price last confirmed 9 days ago
Retailer 15
-
$8,894 SGD
A$10,703 AUD
View
Price last confirmed 22 days ago
B
Retailer 16
-
$10,828 SGD
$8,470 USD
View
Most Expensive
B
Do Amore Diamonds
27-B48F5ABFF · Oct 30
$11,097 SGD
$8,680 USD
View
16 more retailers have this diamond
Prices start from $1,250 SGDSave up to $9,846 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+
3.12ct Radiant
$1,250 SGD