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Marquise|Lab Grown|IGI

3.28ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG768630643

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768630643

Diamond specifications and retailer prices

From $4,651 USD
As of October 24, 2026
Save $7,199 USD (61%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $20,248 USD at With Clarity · As of October 22, 2026
View at With Clarity

About this 3.28ct lab-grown marquise diamond

This 3.28ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768630643 or 768630643. Listed at 13 retailers as of October 24, 2026, with a 155% 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

3.28
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630643
Dimensions15.36 × 7.67 × 4.87 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
15.36 mm7.67 mm3.28 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630643
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.5%

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 24
Current: $6,632 USD|Low: $3,753 USD|High: $21,931 USD|Avg: $10,273 USD|-6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
October 23, 2026
Retailer 5$3,753 USD
Retailer 11$4,651 USD
Retailer 9$4,769 USD
Retailer 13$6,387 USD
Retailer 1$6,632 USD
Retailer 12$7,840 USD
Retailer 7$8,313 USD
Retailer 2$9,528 USD
Retailer 8$10,602 USD
Retailer 6$11,694 USD
Retailer 4$11,850 USD
Retailer 10$13,710 USD
Retailer 3$18,165 USD
With Clarity$20,248 USD

33 data points across 14 retailers

13 retailers$4,651 USD to $11,850 USD

A
Cheapest Retailer
-
$4,651 USD
A
Retailer 2
-
$4,769 USD
View
A
Retailer 3
-
$6,387 USD
HK$49,900 HKD
View
A
Retailer 4
-
$6,632 USD
£5,222 GBP
View
B+
Retailer 5
-
$7,840 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$8,313 USD
€7,917 EUR
View
Price last confirmed 10 days ago
B+
Retailer 7
-
$9,528 USD
View
B+
Retailer 8
-
$10,602 USD
£8,348 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$11,694 USD
ZAR 188,922 ZAR
View
Price last confirmed 9 days ago
B
Retailer 10
-
$11,850 USD
View
B
Retailer 11
-
$13,710 USD
View
Price last confirmed 7 days ago
B
Retailer 12
-
$18,165 USD
View
Price last confirmed 8 days ago
Most Expensive
B
With Clarity
768630643 · Oct 22
$20,248 USD
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from $4,651 USDSave up to $7,199 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
3.28ct Marquise
$4,651 USD