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Marquise|Lab Grown|IGI

3.10ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG768630641

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768630641

Diamond specifications and retailer prices

From €3,226 EUR
$3,604 USD
As of October 31, 2026
Save €12,950 EUR (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €16,175 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 LG768630641 or 768630641. Listed at 13 retailers as of October 31, 2026, with prices from €3,226 to €16,175, a €12,950 spread on the same certified stone. Taylor and Hart lists it at €16,175. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630641
Dimensions14.94 × 7.68 × 4.81 mm
L/W Ratio1.95
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
14.94 mm7.68 mm3.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630641
Side View
Table 59.0%Crown 35.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.6%

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: €9,393 EUR|Low: €3,226 EUR|High: €16,175 EUR|Avg: €8,430 EUR|-14.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
November 1, 2026
Retailer 9€3,226 EUR
Retailer 11€3,873 EUR
Retailer 3€5,751 EUR
Retailer 5€5,880 EUR
Retailer 10€6,574 EUR
Retailer 2€6,982 EUR
Retailer 8€7,447 EUR
Retailer 6€7,716 EUR
Retailer 4€7,757 EUR
Retailer 1€9,393 EUR
Retailer 7€10,532 EUR
Retailer 12€12,209 EUR
Taylor and Hart€16,175 EUR

39 data points across 13 retailers

13 retailers€3,226 EUR to €16,175 EUR

A
Cheapest Retailer
-
€3,226 EUR
$3,604 USD
A
Retailer 2
-
€3,873 EUR
$4,327 USD
View
B+
Retailer 3
-
€5,751 EUR
HK$50,200 HKD
View
B+
Retailer 4
-
€5,880 EUR
£5,173 GBP
View
B+
Retailer 5
-
€6,574 EUR
$7,345 USD
View
B+
Retailer 6
-
€6,982 EUR
$7,800 USD
View
B+
Retailer 7
-
€7,447 EUR
View
B+
Retailer 8
-
€7,716 EUR
$8,620 USD
View
B+
Retailer 9
-
€7,757 EUR
$8,666 USD
View
B+
Retailer 10
-
€9,393 EUR
£8,263 GBP
View
B+
Retailer 11
-
€10,532 EUR
ZAR 190,085 ZAR
View
Retailer 12
-
€12,209 EUR
$13,640 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Taylor and Hart
RLZS7Q6 · Oct 31
€16,175 EUR
$18,071 USD
View
12 more retailers have this diamond
Prices start from €3,226 EURSave up to €12,950 EUR

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
€3,226 EUR