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Radiant|Lab Grown|IGI

3.12ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG828684106

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

Certificate IGI LG828684106

Diamond specifications and retailer prices

From $1,257 SGD
$981 USD
As of October 29, 2026
Save $3,834 SGD (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,167 SGD at Novita Diamonds · As of October 5, 2026
View at Novita Diamonds

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828684106 or 828684106. Listed at 16 retailers as of October 29, 2026, with a 305% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828684106
Dimensions11.02 × 7.00 × 4.66 mm
L/W Ratio1.57
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.02 mm7.00 mm3.12 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828684106
Side View
Table 65.0%Crown 42.2°Girdle: MED-STKPavilion 33.9°Culet: NoneDepth 66.6%

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 29
Current: $3,923 SGD|Low: $1,257 SGD|High: $5,233 SGD|Avg: $2,969 SGD|-0.4%
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
October 30, 2026
Retailer 14$1,257 SGD
Retailer 11$1,433 SGD
Retailer 3$1,576 SGD
Retailer 2$1,865 SGD
Retailer 4$1,981 SGD
Retailer 8$1,985 SGD
Retailer 5$2,912 SGD
Retailer 6$2,969 SGD
Retailer 9$3,007 SGD
Retailer 1$3,923 SGD
Retailer 7$4,493 SGD
Retailer 13$4,678 SGD
Retailer 10$4,880 SGD
Retailer 12$5,091 SGD

18 data points across 14 retailers

16 retailers$1,257 SGD to $5,091 SGD

A+
Cheapest Retailer
-
$1,257 SGD
$981 USD
Final sale: no returns
A
Retailer 2
-
$1,433 SGD
£881 GBP
View
A
Retailer 3
-
$1,576 SGD
$1,230 USD
View
A
Retailer 4
-
$1,865 SGD
$1,455 USD
View
A
Retailer 5
-
$1,981 SGD
€1,472 EUR
View
A
Retailer 6
-
$1,985 SGD
£1,220 GBP
View
A
Retailer 7
-
$2,912 SGD
$2,272 USD
View
Retailer 8
-
$2,969 SGD
A$3,564 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$3,007 SGD
ZAR 37,897 ZAR
View
A
Retailer 10
-
$3,923 SGD
$3,061 USD
View
B+
Retailer 11
-
$4,226 SGD
$3,297 USD
View
B+
Retailer 12
-
$4,493 SGD
$3,506 USD
View
B+
Retailer 13
-
$4,678 SGD
$3,650 USD
View
B+
Retailer 14
-
$4,880 SGD
£2,998 GBP
View
B+
Retailer 15
-
$5,091 SGD
View
Most Expensive
Novita Diamonds
cert_828684106 · Oct 5
$6,167 SGD
A$7,403 AUD
View
Price last confirmed 24 days ago
15 more retailers have this diamond
Prices start from $1,257 SGDSave up to $3,834 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
$1,257 SGD