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Marquise|Lab Grown|IGI

3.10ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG804659668

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG804659668

Diamond specifications and retailer prices

From $4,627 USD
As of October 31, 2026
Save $15,517 USD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $20,144 USD at With Clarity · As of October 31, 2026
View at With Clarity

About this 3.1ct lab-grown marquise diamond

This 3.1ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804659668 or 804659668. Listed at 10 retailers as of October 31, 2026, with prices from $4,627 to $20,144, a $15,517 spread on the same certified stone. With Clarity lists it at $20,144. 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
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659668
Dimensions15.94 × 7.55 × 4.57 mm
L/W Ratio2.11
Girdle conditionFaceted
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
15.94 mm7.55 mm3.10 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659668
Side View
Table 61.0%Crown 33.3°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 60.5%

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 31
Current: $6,569 USD|Low: $4,627 USD|High: $23,689 USD|Avg: $11,315 USD|-14.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 31, 2026
Retailer 7$4,627 USD
Retailer 9$6,349 USD
Retailer 1$6,569 USD
Retailer 8$7,800 USD
Retailer 4$8,320 USD
Retailer 3$9,200 USD
Retailer 2$10,321 USD
Retailer 5$10,550 USD
Retailer 6$13,640 USD
Retailer 10$18,071 USD
With Clarity$20,144 USD

37 data points across 11 retailers

10 retailers$4,627 USD to $20,144 USD

A
Cheapest Retailer
-
$4,627 USD
B+
Retailer 2
-
$6,349 USD
HK$49,600 HKD
View
B+
Retailer 3
-
$6,569 USD
£5,173 GBP
View
B+
Retailer 4
-
$7,800 USD
View
B+
Retailer 5
-
$8,320 USD
€7,924 EUR
View
B+
Retailer 6
-
$9,200 USD
View
B+
Retailer 7
-
$10,550 USD
£8,307 GBP
View
Retailer 8
-
$13,640 USD
View
Price last confirmed 7 days ago
B
Retailer 9
-
$18,071 USD
View
Most Expensive
B
With Clarity
804659668 · Oct 31
$20,144 USD
View
9 more retailers have this diamond
Prices start from $4,627 USDSave up to $15,517 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
$4,627 USD