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Marquise|Lab Grown|IGI

2.58ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG734519351

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG734519351

Diamond specifications and retailer prices

From £2,169 GBP
$2,906 USD
As of November 2, 2026
Save £8,578 GBP (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £16,277 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 2.58ct lab-grown marquise diamond

This 2.58ct lab-grown marquise sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG734519351 or 734519351. Listed at 20 retailers as of October 31, 2026, with a 396% 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

2.58
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG734519351
Dimensions13.89 × 7.24 × 4.56 mm
L/W Ratio1.92
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
13.89 mm7.24 mm2.58 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG734519351
Side View
Table 61.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.0%

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 2
Current: £16,277 GBP|Low: £2,169 GBP|High: £16,277 GBP|Avg: £6,616 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 12
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Retailer 20
November 2, 2026
Retailer 4£2,169 GBP
Retailer 10£2,649 GBP
Retailer 6£2,862 GBP
Retailer 2£3,334 GBP
Retailer 17£3,609 GBP
Retailer 3£3,863 GBP
Retailer 13£4,050 GBP
Retailer 20£4,262 GBP
Retailer 5£4,641 GBP
Retailer 14£6,489 GBP
Retailer 18£6,560 GBP
Retailer 8£6,889 GBP
Retailer 15£7,251 GBP
Retailer 16£7,815 GBP
Retailer 7£7,925 GBP
Retailer 11£8,762 GBP
Retailer 12£10,268 GBP
Retailer 9£10,659 GBP
Retailer 19£10,747 GBP
Do Amore Diamonds£16,277 GBP

10 data points across 20 retailers

20 retailers£2,169 GBP to £10,747 GBP

A
Cheapest Retailer
-
£2,169 GBP
$2,906 USD
A
Retailer 2
-
£2,649 GBP
$3,550 USD
View
Final sale: no returns
A
Retailer 3
-
£2,862 GBP
$3,835 USD
View
A
Retailer 4
-
£3,334 GBP
View
B+
Retailer 5
-
£3,609 GBP
$4,835 USD
View
B+
Retailer 6
-
£3,863 GBP
$5,176 USD
View
B+
Retailer 7
-
£4,050 GBP
View
B+
Retailer 8
-
£4,262 GBP
$5,711 USD
View
B+
Retailer 9
-
£4,641 GBP
View
B+
Retailer 10
-
£6,489 GBP
View
B
Retailer 11
-
£6,560 GBP
$8,790 USD
View
B
Retailer 12
-
£6,889 GBP
$9,230 USD
View
B
Retailer 13
-
£7,251 GBP
A$14,948 AUD
View
B
Retailer 14
-
£7,815 GBP
ZAR 169,163 ZAR
View
B
Retailer 15
-
£7,925 GBP
$10,619 USD
View
Retailer 16
-
£8,762 GBP
$11,740 USD
View
Price last confirmed 9 days ago
B
Retailer 17
-
£10,268 GBP
$13,758 USD
View
B
Retailer 18
-
£10,659 GBP
$14,281 USD
View
B
Retailer 19
-
£10,747 GBP
$14,400 USD
View
Most Expensive
Do Amore Diamonds
27-2967B11AF · Nov 2
£16,277 GBP
$21,810 USD
View
Price under review
19 more retailers have this diamond
Prices start from £2,169 GBPSave up to £8,578 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
2.58ct Marquise
£2,169 GBP