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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 $664 USD
As of October 30, 2026
Save $5,226 USD (89%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $5,890 USD 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 $664 to $5,890, a $5,226 spread on the same certified stone. Do Amore Diamonds lists it at $5,890. 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

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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: $5,890 USD|Low: $529 USD|High: $6,750 USD|Avg: $2,111 USD|-12.7%
Do Amore Diamonds
Retailer 2
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Retailer 20
November 1, 2026
Retailer 4$637 USD
Retailer 7$742 USD
Retailer 3$770 USD
Retailer 20$770 USD
Retailer 19$950 USD
Retailer 9$980 USD
Retailer 8$1,088 USD
Retailer 6$1,168 USD
Retailer 13$1,364 USD
Retailer 15$1,919 USD
Retailer 18$1,966 USD
Retailer 16$1,973 USD
Retailer 5$2,625 USD
Retailer 11$2,637 USD
Retailer 17$2,640 USD
Retailer 10$2,652 USD
Retailer 12$3,041 USD
Retailer 2$3,336 USD
Retailer 14$5,520 USD
Do Amore Diamonds$5,890 USD

43 data points across 20 retailers

25 retailers$664 USD to $5,890 USD

Retailer 1
-
$637 USD
Price last confirmed 30 days ago
A
Retailer 2
-
$664 USD
View
Retailer 3
-
$722 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
$742 USD
View
Final sale: no returns
Retailer 5
-
$770 USD
View
Price last confirmed 16 days ago
Retailer 6
-
$770 USD
View
Price last confirmed 29 days ago
A
Retailer 7
-
$770 USD
View
A
Retailer 8
-
$950 USD
View
A
Retailer 9
-
$980 USD
View
A
Retailer 10
-
$1,088 USD
View
A
Retailer 11
-
$1,168 USD
View
A
Retailer 12
-
$1,364 USD
£1,074 GBP
View
B+
Retailer 13
-
$1,919 USD
A$2,952 AUD
View
B+
Retailer 14
-
$1,966 USD
View
B+
Retailer 15
-
$1,973 USD
ZAR 31,872 ZAR
View
Retailer 16
-
$2,389 USD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$2,389 USD
View
B+
Retailer 18
-
$2,625 USD
View
B
Retailer 19
-
$2,637 USD
£2,076 GBP
View
B+
Retailer 20
-
$2,640 USD
View
B
Retailer 21
-
$2,652 USD
View
B
Retailer 22
-
$3,041 USD
View
B
Retailer 23
-
$3,336 USD
£2,627 GBP
View
B
Retailer 24
-
$5,520 USD
View
Most Expensive
B
Do Amore Diamonds
27-4DDD2B3F8 · Oct 31
$5,890 USD
View
24 more retailers have this diamond
Prices start from $664 USDSave up to $5,226 USD

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
$664 USD