CaratHunter
Plans
Oval|Lab Grown|GIA

3.12ct D SI1 Oval Lab Grown Diamond

EX • D/SI1

Diamond specifications and retailer prices

From $1,803 CAD
$1,291 USD
As of October 29, 2026
Save $3,087 CAD (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,890 CAD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 10 retailers as of October 29, 2026, with prices from $1,803 to $4,890, a $3,087 spread on the same certified stone. Diamond Exchange Canada lists it at $4,890. 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

3.12
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions11.66 × 8.29 × 5.12 mm
L/W Ratio1.41
Top View
11.66 mm8.29 mm3.12 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 60.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,890 CAD|Low: $1,803 CAD|High: $4,890 CAD|Avg: $3,032 CAD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 5$1,803 CAD
Retailer 4$1,963 CAD
Retailer 2$2,093 CAD
Retailer 6$2,093 CAD
Retailer 7$3,157 CAD
Retailer 3$4,329 CAD
Diamond Exchange Canada$4,890 CAD

8 data points across 7 retailers

10 retailers$1,803 CAD to $4,890 CAD

Retailer 1
-
$1,803 CAD
$1,291 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
$1,803 CAD
$1,291 USD
View
B+
Retailer 3
-
$1,963 CAD
$1,405 USD
View
B+
Retailer 4
-
$1,963 CAD
$1,405 USD
View
B+
Retailer 5
-
$2,093 CAD
$1,498 USD
View
B+
Retailer 6
-
$2,093 CAD
$1,498 USD
View
Retailer 7
-
$2,093 CAD
$1,498 USD
View
Price last confirmed 17 days ago
B
Retailer 8
-
$4,329 CAD
$3,099 USD
View
B
Retailer 9
-
$4,329 CAD
$3,099 USD
View
Most Expensive
B
Diamond Exchange Canada
1986514856 · Oct 30
$4,890 CAD
View
9 more retailers have this diamond
Prices start from $1,803 CADSave up to $3,087 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.

B+
3.12ct Oval
$1,803 CAD