CaratHunter
Plans
Marquise|Lab Grown|IGI

3.09ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG833657400

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG833657400

Diamond specifications and retailer prices

From £2,430 GBP
$3,256 USD
As of November 1, 2026
Save £5,817 GBP (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £8,248 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.09ct lab-grown marquise diamond

This 3.09ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG833657400 or 833657400. Listed at 9 retailers as of October 31, 2026, with prices from £2,430 to £8,248, a £5,817 spread on the same certified stone. Taylor and Hart lists it at £8,248. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.09
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833657400
Dimensions15.07 × 7.48 × 4.67 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.07 mm7.48 mm3.09 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833657400
Side View
Table 59.0%Crown 41.1°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.4%

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: Nov 1
Current: £6,334 GBP|Low: £2,430 GBP|High: £8,248 GBP|Avg: £4,936 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Taylor and Hart
November 1, 2026
Retailer 7£2,430 GBP
Retailer 6£2,625 GBP
Retailer 2£3,196 GBP
Retailer 3£3,381 GBP
Retailer 4£4,153 GBP
Retailer 5£5,777 GBP
Retailer 1£6,334 GBP
Retailer 8£7,935 GBP
Taylor and Hart£8,248 GBP

31 data points across 9 retailers

9 retailers£2,430 GBP to £8,248 GBP

A
Cheapest Retailer
-
£2,430 GBP
$3,256 USD
A
Retailer 2
-
£2,625 GBP
$3,517 USD
View
A
Retailer 3
-
£3,196 GBP
View
A
Retailer 4
-
£3,381 GBP
$4,530 USD
View
Retailer 5
-
£4,153 GBP
€5,299 EUR
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£5,777 GBP
$7,740 USD
View
B+
Retailer 7
-
£6,334 GBP
View
B
Retailer 8
-
£7,935 GBP
SGD 14,368 SGD
View
Most Expensive
B
Taylor and Hart
BVYH1C7 · Oct 31
£8,248 GBP
$11,051 USD
View
8 more retailers have this diamond
Prices start from £2,430 GBPSave up to £5,817 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
3.09ct Marquise
£2,430 GBP