Marquise|Lab Grown|IGI

3.68ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG821656000

Certificate IGI LG821656000

Diamond specifications and retailer prices

From $4,700 USD
As of October 30, 2026
Save $3,040 USD (39%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $7,740 USD at Kay Jewelers · As of October 30, 2026
View at Kay Jewelers

About this 3.68ct lab-grown marquise diamond

This 3.68ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG821656000 or 821656000. Listed at 4 retailers as of October 30, 2026, with prices from $4,700 to $7,740, a $3,040 spread on the same certified stone. Kay Jewelers lists it at $7,740. 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

3.68
Carat
E
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG821656000
Dimensions17.33 × 7.85 × 4.93 mm
L/W Ratio2.21
Top View
17.33 mm7.85 mm3.68 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821656000
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $7,740 USD|Low: $4,700 USD|High: $7,740 USD|Avg: $6,778 USD
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
September 28, 2026
Retailer 2$4,700 USD
Retailer 4$5,410 USD
Kay Jewelers$7,740 USD
Retailer 3$7,740 USD

3 data points across 4 retailers

4 retailers$4,700 USD to $7,740 USD

B+
Cheapest Retailer
-
$4,700 USD
B
Retailer 2
-
$5,410 USD
View
B
Retailer 3
-
$7,740 USD
View
Most Expensive
B
Kay Jewelers
259912014 · Oct 30
$7,740 USD
View
3 more retailers have this diamond
Prices start from $4,700 USDSave up to $3,040 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.

B+
3.68ct Marquise
$4,700 USD