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Oval|Lab Grown|IGI

1.51ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG685590864

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG685590864

Diamond specifications and retailer prices

From $382 CAD
$273 USD
As of October 26, 2026
Save $3,019 CAD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,401 CAD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685590864 or 685590864. Listed at 16 retailers as of October 26, 2026, with prices from $382 to $3,401, a $3,019 spread on the same certified stone. Do Amore Diamonds lists it at $3,401. 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

1.51
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685590864
Dimensions9.18 × 6.36 × 3.96 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.18 mm6.36 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685590864
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
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 26
Current: $3,401 CAD|Low: $367 CAD|High: $3,401 CAD|Avg: $1,084 CAD
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
October 29, 2026
Retailer 10$382 CAD
Retailer 13$444 CAD
Retailer 4$474 CAD
Retailer 11$474 CAD
Retailer 7$586 CAD
Retailer 3$840 CAD
Retailer 2$927 CAD
Retailer 8$963 CAD
Retailer 5$1,116 CAD
Retailer 9$1,457 CAD
Retailer 12$1,684 CAD
Retailer 6$2,110 CAD
Do Amore Diamonds$3,401 CAD

42 data points across 13 retailers

16 retailers$382 CAD to $3,401 CAD

A
Cheapest Retailer
-
$382 CAD
$273 USD
A
Retailer 2
-
$444 CAD
$317 USD
View
A
Retailer 3
-
$474 CAD
$339 USD
View
A
Retailer 4
-
$474 CAD
$339 USD
View
A
Retailer 5
-
$558 CAD
$399 USD
View
A
Retailer 6
-
$586 CAD
£330 GBP
View
B+
Retailer 7
-
$633 CAD
$452 USD
View
B+
Retailer 8
-
$693 CAD
$495 USD
View
B+
Retailer 9
-
$840 CAD
$600 USD
View
B+
Retailer 10
-
$927 CAD
£521 GBP
View
B+
Retailer 11
-
$963 CAD
A$1,058 AUD
View
B+
Retailer 12
-
$1,116 CAD
$798 USD
View
B
Retailer 13
-
$1,457 CAD
$1,041 USD
View
B
Retailer 14
-
$1,684 CAD
$1,203 USD
View
B
Retailer 15
-
$2,110 CAD
£1,187 GBP
View
Most Expensive
B
Do Amore Diamonds
27-396100D34 · Oct 29
$3,401 CAD
$2,430 USD
View
15 more retailers have this diamond
Prices start from $382 CADSave up to $3,019 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
1.51ct Oval
$382 CAD