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Marquise|Lab Grown|IGI

3.51ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG749521296

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG749521296

Diamond specifications and retailer prices

From $1,941 SGD
CA$2,108 CAD
As of November 2, 2026
Save $859 SGD (31%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,630 SGD at Rare Carat · As of July 27, 2026
View at Rare Carat

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 LG749521296 or 749521296. Listed at 3 retailers as of November 2, 2026, with a 44% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749521296
Dimensions14.83 × 8.03 × 5.14 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizePointed
Top View
14.83 mm8.03 mm3.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749521296
Side View
Table 58.0%Crown 35.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 64.0%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $3,630 SGD|Low: $671 SGD|High: $4,611 SGD|Avg: $1,881 SGD|-5.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
August 30, 2026
Retailer 7$749 SGD
Retailer 3$854 SGD
Retailer 11$909 SGD
Retailer 5$980 SGD
Retailer 4$1,052 SGD
Retailer 2$1,177 SGD
Retailer 10$1,941 SGD
Retailer 6$2,321 SGD
Retailer 8$2,801 SGD
Rare Carat$3,630 SGD
Retailer 9$4,192 SGD

62 data points across 11 retailers

3 retailers$1,941 SGD to $2,801 SGD

B+
Cheapest Retailer
-
$1,941 SGD
CA$2,108 CAD
B+
Retailer 2
-
$2,801 SGD
$2,190 USD
View
Most Expensive
Rare Carat
749521296 · Jul 27
$3,630 SGD
$2,839 USD
View
Price last confirmed 99 days ago
2 more retailers have this diamond
Prices start from $1,941 SGDSave up to $859 SGD

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+
3.51ct Marquise
$1,941 SGD