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Marquise|Lab Grown|IGI

3.51ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG735596581

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG735596581

Diamond specifications and retailer prices

From $928 CAD
$664 USD
As of October 30, 2026
Save $7,300 CAD (89%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $8,228 CAD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.51ct lab-grown marquise diamond

This 3.51ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG735596581 or 735596581. Listed at 25 retailers as of October 30, 2026, with prices from $928 to $8,228, a $7,300 spread on the same certified stone. Do Amore Diamonds lists it at $8,228. 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

3.51
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735596581
Dimensions15.47 × 8.03 × 5.05 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizePointed
Top View
15.47 mm8.03 mm3.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735596581
Side View
Table 57.0%Crown 34.3°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 62.9%

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 30
Current: $8,228 CAD|Low: $739 CAD|High: $9,429 CAD|Avg: $2,949 CAD|-12.7%
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
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 4$890 CAD
Retailer 7$1,036 CAD
Retailer 3$1,076 CAD
Retailer 20$1,076 CAD
Retailer 19$1,327 CAD
Retailer 9$1,369 CAD
Retailer 8$1,520 CAD
Retailer 6$1,632 CAD
Retailer 13$1,905 CAD
Retailer 15$2,680 CAD
Retailer 18$2,746 CAD
Retailer 16$2,756 CAD
Retailer 5$3,667 CAD
Retailer 11$3,683 CAD
Retailer 17$3,688 CAD
Retailer 10$3,705 CAD
Retailer 12$4,248 CAD
Retailer 2$4,660 CAD
Retailer 14$7,711 CAD
Do Amore Diamonds$8,228 CAD

43 data points across 20 retailers

25 retailers$928 CAD to $8,228 CAD

Retailer 1
-
$890 CAD
$637 USD
Price last confirmed 30 days ago
A
Retailer 2
-
$928 CAD
$664 USD
View
Retailer 3
-
$1,009 CAD
$722 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
$1,036 CAD
$742 USD
View
Final sale: no returns
Retailer 5
-
$1,076 CAD
$770 USD
View
Price last confirmed 16 days ago
Retailer 6
-
$1,076 CAD
$770 USD
View
Price last confirmed 29 days ago
A
Retailer 7
-
$1,076 CAD
$770 USD
View
A
Retailer 8
-
$1,327 CAD
$950 USD
View
A
Retailer 9
-
$1,369 CAD
$980 USD
View
A
Retailer 10
-
$1,520 CAD
$1,088 USD
View
A
Retailer 11
-
$1,632 CAD
$1,168 USD
View
A
Retailer 12
-
$1,905 CAD
£1,074 GBP
View
B+
Retailer 13
-
$2,680 CAD
A$2,952 AUD
View
B+
Retailer 14
-
$2,746 CAD
$1,966 USD
View
B+
Retailer 15
-
$2,756 CAD
ZAR 31,872 ZAR
View
Retailer 16
-
$3,337 CAD
$2,389 USD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$3,337 CAD
$2,389 USD
View
B+
Retailer 18
-
$3,667 CAD
$2,625 USD
View
B
Retailer 19
-
$3,683 CAD
£2,076 GBP
View
B+
Retailer 20
-
$3,688 CAD
$2,640 USD
View
B
Retailer 21
-
$3,705 CAD
$2,652 USD
View
B
Retailer 22
-
$4,248 CAD
$3,041 USD
View
B
Retailer 23
-
$4,660 CAD
£2,627 GBP
View
B
Retailer 24
-
$7,711 CAD
$5,520 USD
View
Most Expensive
B
Do Amore Diamonds
27-4DDD2B3F8 · Oct 31
$8,228 CAD
$5,890 USD
View
24 more retailers have this diamond
Prices start from $928 CADSave up to $7,300 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
3.51ct Marquise
$928 CAD