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Marquise|Lab Grown|IGI

3.10ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG762545835

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG762545835

Diamond specifications and retailer prices

From £2,690 GBP
$3,604 USD
As of October 31, 2026
Save £10,797 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £13,487 GBP 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG762545835 or 762545835. Listed at 14 retailers as of October 31, 2026, with prices from £2,690 to £13,487, a £10,797 spread on the same certified stone. Taylor and Hart lists it at £13,487. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762545835
Dimensions14.87 × 7.62 × 4.80 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
14.87 mm7.62 mm3.10 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762545835
Side View
Table 60.0%Crown 34.3°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £7,832 GBP|Low: £2,690 GBP|High: £13,026 GBP|Avg: £7,140 GBP
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
November 1, 2026
Retailer 11£2,690 GBP
Retailer 3£3,229 GBP
Retailer 7£4,903 GBP
Retailer 10£5,411 GBP
Retailer 12£5,821 GBP
Retailer 9£6,210 GBP
Retailer 2£6,468 GBP
Retailer 5£6,485 GBP
Retailer 1£7,832 GBP
Retailer 8£8,782 GBP
Retailer 13£8,911 GBP
Retailer 4£10,180 GBP
Retailer 6£12,535 GBP

37 data points across 13 retailers

14 retailers£2,690 GBP to £13,487 GBP

A
Cheapest Retailer
-
£2,690 GBP
$3,604 USD
A
Retailer 2
-
£3,229 GBP
$4,327 USD
View
B+
Retailer 3
-
£4,796 GBP
HK$50,200 HKD
View
B+
Retailer 4
-
£4,903 GBP
View
Retailer 5
-
£4,974 GBP
View
Price last confirmed 17 days ago
B+
Retailer 6
-
£5,821 GBP
$7,800 USD
View
B+
Retailer 7
-
£6,210 GBP
€7,924 EUR
View
B+
Retailer 8
-
£6,468 GBP
$8,666 USD
View
B+
Retailer 9
-
£7,832 GBP
View
B+
Retailer 10
-
£8,782 GBP
ZAR 190,085 ZAR
View
B
Retailer 11
-
£8,911 GBP
$11,940 USD
View
Retailer 12
-
£10,180 GBP
$13,640 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
£12,535 GBP
A$25,839 AUD
View
Most Expensive
B
Taylor and Hart
CUSHYXH · Oct 31
£13,487 GBP
$18,071 USD
View
13 more retailers have this diamond
Prices start from £2,690 GBPSave up to £10,797 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
3.10ct Marquise
£2,690 GBP