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Marquise|Lab Grown|IGI

3.23ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG846662788

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846662788

Diamond specifications and retailer prices

From £2,576 GBP
$3,451 USD
As of October 30, 2026
Save £15,150 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £17,725 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.23ct lab-grown marquise diamond

This 3.23ct 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 LG846662788 or 846662788. Listed at 18 retailers as of October 30, 2026, with prices from £2,576 to £17,725, a £15,150 spread on the same certified stone. Do Amore Diamonds lists it at £17,725. 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

3.23
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662788
Dimensions14.72 × 7.69 × 4.86 mm
L/W Ratio1.91
Girdle conditionFaceted
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
14.72 mm7.69 mm3.23 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662788
Side View
Table 56.0%Crown 37.2°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 63.2%

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: £17,725 GBP|Low: £2,576 GBP|High: £18,181 GBP|Avg: £5,900 GBP|-2.5%
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 11
Retailer 12
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Retailer 17
Retailer 18
November 1, 2026
Retailer 16£2,576 GBP
Retailer 17£2,664 GBP
Retailer 9£2,818 GBP
Retailer 15£2,826 GBP
Retailer 18£3,105 GBP
Retailer 12£3,925 GBP
Retailer 6£4,121 GBP
Retailer 14£4,121 GBP
Retailer 2£4,635 GBP
Retailer 7£4,885 GBP
Retailer 8£5,478 GBP
Retailer 4£7,071 GBP
Retailer 3£7,102 GBP
Retailer 11£7,544 GBP
Retailer 5£8,192 GBP
Retailer 10£9,284 GBP
Retailer 13£12,631 GBP
Do Amore Diamonds£17,725 GBP

16 data points across 18 retailers

18 retailers£2,576 GBP to £17,725 GBP

A
Cheapest Retailer
-
£2,576 GBP
$3,451 USD
A
Retailer 2
-
£2,664 GBP
$3,569 USD
View
A
Retailer 3
-
£2,818 GBP
$3,776 USD
View
A
Retailer 4
-
£2,826 GBP
$3,786 USD
View
A
Retailer 5
-
£3,105 GBP
$4,160 USD
View
A
Retailer 6
-
£3,925 GBP
View
A
Retailer 7
-
£4,121 GBP
$5,522 USD
View
A
Retailer 8
-
£4,121 GBP
$5,522 USD
View
A
Retailer 9
-
£4,635 GBP
$6,211 USD
View
B+
Retailer 10
-
£4,885 GBP
$6,545 USD
View
B+
Retailer 11
-
£5,478 GBP
€6,990 EUR
View
B+
Retailer 12
-
£7,071 GBP
$9,475 USD
View
B+
Retailer 13
-
£7,102 GBP
View
Retailer 14
-
£7,544 GBP
A$15,550 AUD
View
B+
Retailer 15
-
£8,192 GBP
$10,976 USD
View
B
Retailer 16
-
£9,284 GBP
$12,440 USD
View
B
Retailer 17
-
£12,631 GBP
A$26,037 AUD
View
Most Expensive
B
Do Amore Diamonds
27-1200354C1 · Oct 31
£17,725 GBP
$23,750 USD
View
17 more retailers have this diamond
Prices start from £2,576 GBPSave up to £15,150 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
3.23ct Marquise
£2,576 GBP