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Marquise|Lab Grown|IGI

3.13ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG780665992

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780665992

Diamond specifications and retailer prices

From £2,546 GBP
$3,411 USD
As of October 30, 2026
Save £14,971 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £17,516 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.13ct lab-grown marquise diamond

This 3.13ct 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 LG780665992 or 780665992. Listed at 15 retailers as of October 30, 2026, with prices from £2,546 to £17,516, a £14,971 spread on the same certified stone. Do Amore Diamonds lists it at £17,516. 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

3.13
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665992
Dimensions14.42 × 7.59 × 4.92 mm
L/W Ratio1.90
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
14.42 mm7.59 mm3.13 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665992
Side View
Table 59.0%Crown 35.4°Girdle: STK-THKPavilion 41.4°Culet: NoneDepth 64.8%

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 30
Current: £17,516 GBP|Low: £2,546 GBP|High: £20,300 GBP|Avg: £5,980 GBP|-13.7%
Do Amore 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 31, 2026
Retailer 10£2,546 GBP
Retailer 11£2,717 GBP
Retailer 6£2,779 GBP
Retailer 8£2,792 GBP
Retailer 13£3,071 GBP
Retailer 7£3,474 GBP
Retailer 2£4,073 GBP
Retailer 3£4,073 GBP
Retailer 5£4,597 GBP
Retailer 4£5,433 GBP
Retailer 12£5,580 GBP
Retailer 9£6,501 GBP
Retailer 14£7,021 GBP
Retailer 15£8,094 GBP
Do Amore Diamonds£17,516 GBP

34 data points across 15 retailers

15 retailers£2,546 GBP to £17,516 GBP

A
Cheapest Retailer
-
£2,546 GBP
$3,411 USD
A
Retailer 2
-
£2,717 GBP
$3,641 USD
View
A
Retailer 3
-
£2,779 GBP
$3,723 USD
View
A
Retailer 4
-
£2,792 GBP
$3,741 USD
View
A
Retailer 5
-
£3,071 GBP
$4,115 USD
View
A
Retailer 6
-
£3,474 GBP
$4,655 USD
View
Final sale: no returns
A
Retailer 7
-
£4,073 GBP
$5,458 USD
View
A
Retailer 8
-
£4,073 GBP
$5,458 USD
View
A
Retailer 9
-
£4,597 GBP
$6,159 USD
View
B+
Retailer 10
-
£5,433 GBP
$7,280 USD
View
B+
Retailer 11
-
£5,580 GBP
€7,121 EUR
View
B+
Retailer 12
-
£6,501 GBP
$8,710 USD
View
B+
Retailer 13
-
£7,021 GBP
View
B+
Retailer 14
-
£8,094 GBP
$10,845 USD
View
Most Expensive
B
Do Amore Diamonds
27-3C98B91F0 · Oct 31
£17,516 GBP
$23,470 USD
View
14 more retailers have this diamond
Prices start from £2,546 GBPSave up to £14,971 GBP

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
3.13ct Marquise
£2,546 GBP