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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 $2,906 USD
As of October 31, 2026
Save $11,494 USD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $21,810 USD at Do Amore Diamonds · As of October 31, 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 19 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
Color
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: Oct 31
Current: $21,810 USD|Low: $2,906 USD|High: $21,810 USD|Avg: $8,891 USD
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 19
October 31, 2026
Retailer 3$2,906 USD
Retailer 9$3,550 USD
Retailer 5$3,835 USD
Retailer 12$4,481 USD
Retailer 15$4,835 USD
Retailer 19$5,176 USD
Retailer 2$5,426 USD
Retailer 18$5,711 USD
Retailer 4$6,218 USD
Retailer 14$8,741 USD
Retailer 16$8,790 USD
Retailer 7$9,230 USD
Retailer 13$10,471 USD
Retailer 6$10,619 USD
Retailer 10$11,740 USD
Retailer 11$13,758 USD
Retailer 8$14,281 USD
Retailer 17$14,400 USD
Do Amore Diamonds$21,810 USD

8 data points across 19 retailers

19 retailers$2,906 USD to $14,400 USD

A
Cheapest Retailer
-
$2,906 USD
A
Retailer 2
-
$3,550 USD
View
Final sale: no returns
A
Retailer 3
-
$3,835 USD
View
B+
Retailer 4
-
$4,481 USD
£3,529 GBP
View
B+
Retailer 5
-
$4,835 USD
View
B+
Retailer 6
-
$5,176 USD
View
B+
Retailer 7
-
$5,426 USD
£4,273 GBP
View
B+
Retailer 8
-
$5,711 USD
View
B+
Retailer 9
-
$6,218 USD
£4,896 GBP
View
B
Retailer 10
-
$8,741 USD
£6,883 GBP
View
B
Retailer 11
-
$8,790 USD
View
B
Retailer 12
-
$9,230 USD
View
B
Retailer 13
-
$10,471 USD
ZAR 169,163 ZAR
View
B
Retailer 14
-
$10,619 USD
View
Retailer 15
-
$11,740 USD
View
Price last confirmed 7 days ago
B
Retailer 16
-
$13,758 USD
View
B
Retailer 17
-
$14,281 USD
View
B
Retailer 18
-
$14,400 USD
View
Most Expensive
Do Amore Diamonds
27-2967B11AF · Oct 31
$21,810 USD
View
Price under review
18 more retailers have this diamond
Prices start from $2,906 USDSave up to $11,494 USD

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
$2,906 USD