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Marquise|Lab Grown|IGI

3.10ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG776678607

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG776678607

Diamond specifications and retailer prices

From $443 USD
As of October 28, 2026
Save $2,452 USD (85%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,525 USD at Helzberg Diamonds · As of October 8, 2026
View at Helzberg Diamonds

About this 3.1ct lab-grown marquise diamond

This 3.1ct 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 LG776678607 or 776678607. Listed at 6 retailers as of October 27, 2026, with a 554% 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

3.10
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776678607
Dimensions15.02 × 7.56 × 4.75 mm
L/W Ratio1.99
Girdle conditionFaceted
Culet sizePointed
Top View
15.02 mm7.56 mm3.10 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776678607
Side View
Table 62.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $3,525 USD|Low: $443 USD|High: $3,525 USD|Avg: $1,399 USD
Helzberg 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
October 27, 2026
Retailer 9$443 USD
Retailer 14$512 USD
Retailer 8$617 USD
Retailer 5$748 USD
Retailer 3$770 USD
Retailer 11$871 USD
Retailer 15$965 USD
Retailer 4$1,064 USD
Retailer 7$1,231 USD
Retailer 6$1,519 USD
Retailer 10$1,620 USD
Retailer 12$2,225 USD
Retailer 2$2,895 USD
Retailer 13$3,320 USD
Helzberg Diamonds$3,525 USD

19 data points across 15 retailers

6 retailers$443 USD to $2,895 USD

A
Cheapest Retailer
-
$443 USD
Final sale: no returns
B+
Retailer 2
-
$617 USD
View
Retailer 3
-
$1,620 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$2,225 USD
View
Price last confirmed 25 days ago
B
Retailer 5
-
$2,895 USD
View
Most Expensive
Helzberg Diamonds
ZXZNNMMNOMGN · Oct 8
$3,525 USD
View
Price last confirmed 24 days ago
5 more retailers have this diamond
Prices start from $443 USDSave up to $2,452 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
3.10ct Marquise
$443 USD