Marquise|Lab Grown|GCAL

3.10ct D IF Marquise Lab Grown Diamond

EX • D/IF • GCAL 360736125

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 360736125

Diamond specifications and retailer prices

From £5,106 GBP
$6,841 USD
As of October 31, 2026
Save £8,175 GBP (62%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £20,213 GBP at Frank Darling · As of October 31, 2026
View at Frank Darling

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 GCAL 360736125. Listed at 16 retailers as of October 31, 2026, with a 160% 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

3.10
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 360736125
Dimensions14.91 × 7.67 × 4.75 mm
L/W Ratio1.94
Culet sizeNone
Top View
14.91 mm7.67 mm3.10 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 360736125
Side View
Table 58.0%Crown 33.7°Girdle: MED-MEDPavilion 39.8°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £20,213 GBP|Low: £5,106 GBP|High: £35,548 GBP|Avg: £13,483 GBP|-18.5%
Frank Darling
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
November 1, 2026
Retailer 15£5,106 GBP
Retailer 11£5,697 GBP
Retailer 10£5,925 GBP
Retailer 7£6,380 GBP
Retailer 12£6,609 GBP
Retailer 14£7,245 GBP
Retailer 9£7,351 GBP
Retailer 5£8,204 GBP
Retailer 8£8,314 GBP
Retailer 2£13,281 GBP
Frank Darling£20,213 GBP
Retailer 3£23,248 GBP
Retailer 6£23,248 GBP
Retailer 13£23,272 GBP
Retailer 4£35,548 GBP

31 data points across 15 retailers

16 retailers£5,106 GBP to £13,281 GBP

B+
Cheapest Retailer
-
£5,106 GBP
$6,841 USD
B+
Retailer 2
-
£5,697 GBP
$7,634 USD
View
B+
Retailer 3
-
£5,925 GBP
$7,939 USD
View
B+
Retailer 4
-
£6,380 GBP
$8,548 USD
View
Final sale: no returns
Retailer 5
-
£6,609 GBP
$8,855 USD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
£6,609 GBP
$8,855 USD
View
B+
Retailer 7
-
£7,351 GBP
$9,850 USD
View
B
Retailer 8
-
£8,204 GBP
$10,992 USD
View
B+
Retailer 9
-
£8,314 GBP
View
B
Retailer 10
-
£11,087 GBP
$14,856 USD
View
B
Retailer 11
-
£13,281 GBP
View
Most Expensive
Frank Darling
FAGD-90368FA · Oct 31
£20,213 GBP
$27,083 USD
View
Price under review
11 more retailers have this diamond
Prices start from £5,106 GBPSave up to £8,175 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.

B+
3.10ct Marquise
£5,106 GBP