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Oval|Lab Grown|IGI

3.12ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG844664145

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG844664145

Diamond specifications and retailer prices

From $1,289 CAD
$921 USD
As of October 29, 2026
Save $19,089 CAD (94%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $20,378 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.12ct lab-grown oval diamond

This 3.12ct lab-grown oval 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 LG844664145 or 844664145. Listed at 16 retailers as of October 29, 2026, with prices from $1,289 to $20,378, a $19,089 spread on the same certified stone. Brilliant Earth lists it at $20,378. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844664145
Dimensions11.70 × 8.33 × 5.03 mm
L/W Ratio1.40
Girdle conditionFaceted
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
11.70 mm8.33 mm3.12 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844664145
Side View
Table 60.0%Crown 33.4°Girdle: MED-STKPavilion 40°Culet: NoneDepth 60.4%

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: $20,378 CAD|Low: $1,289 CAD|High: $20,378 CAD|Avg: $5,446 CAD
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
October 29, 2026
Retailer 3$1,289 CAD
Retailer 17$1,402 CAD
Retailer 11$1,754 CAD
Retailer 15$1,805 CAD
Retailer 12$1,976 CAD
Retailer 4$2,398 CAD
Retailer 9$2,770 CAD
Retailer 13$3,095 CAD
Retailer 16$3,278 CAD
Retailer 5$3,286 CAD
Retailer 7$3,872 CAD
Retailer 18$4,262 CAD
Retailer 2$5,629 CAD
Retailer 10$6,782 CAD
Retailer 8$7,635 CAD
Retailer 14$11,449 CAD
Retailer 6$12,427 CAD
Brilliant Earth$20,378 CAD

14 data points across 18 retailers

16 retailers$1,289 CAD to $20,378 CAD

A+
Cheapest Retailer
-
$1,289 CAD
$921 USD
A
Retailer 2
-
$1,402 CAD
$1,002 USD
View
A
Retailer 3
-
$1,754 CAD
$1,253 USD
View
A
Retailer 4
-
$1,805 CAD
$1,290 USD
View
A
Retailer 5
-
$1,976 CAD
£1,112 GBP
View
A
Retailer 6
-
$2,398 CAD
$1,713 USD
View
A
Retailer 7
-
$3,095 CAD
$2,211 USD
View
A
Retailer 8
-
$3,278 CAD
$2,342 USD
View
A
Retailer 9
-
$3,286 CAD
$2,348 USD
View
Retailer 10
-
$3,872 CAD
A$4,256 AUD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$4,262 CAD
$3,045 USD
View
B+
Retailer 12
-
$5,629 CAD
£3,167 GBP
View
Retailer 13
-
$7,635 CAD
$5,455 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$11,449 CAD
$8,180 USD
View
B
Retailer 15
-
$12,427 CAD
$8,879 USD
View
Most Expensive
B
Brilliant Earth
22165708Y · Oct 29
$20,378 CAD
$14,560 USD
View
15 more retailers have this diamond
Prices start from $1,289 CADSave up to $19,089 CAD

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 Oval
$1,289 CAD