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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 $4,147 AUD
$2,906 USD
As of November 2, 2026
Save $16,401 AUD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $31,121 AUD 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: $31,121 AUD|Low: $4,147 AUD|High: $31,121 AUD|Avg: $12,649 AUD
Do Amore Diamonds
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 4$4,147 AUD
Retailer 10$5,065 AUD
Retailer 6$5,472 AUD
Retailer 2$6,375 AUD
Retailer 17$6,899 AUD
Retailer 3$7,386 AUD
Retailer 13$7,743 AUD
Retailer 20$8,149 AUD
Retailer 5$8,872 AUD
Retailer 14$12,406 AUD
Retailer 18$12,542 AUD
Retailer 8$13,170 AUD
Retailer 15$13,864 AUD
Retailer 16$14,941 AUD
Retailer 7$15,152 AUD
Retailer 11$16,751 AUD
Retailer 12$19,632 AUD
Retailer 9$20,378 AUD
Retailer 19$20,547 AUD
Do Amore Diamonds$31,121 AUD

10 data points across 20 retailers

20 retailers$4,147 AUD to $20,547 AUD

A
Cheapest Retailer
-
$4,147 AUD
$2,906 USD
A
Retailer 2
-
$5,065 AUD
$3,550 USD
View
Final sale: no returns
A
Retailer 3
-
$5,472 AUD
$3,835 USD
View
A
Retailer 4
-
$6,375 AUD
£3,518 GBP
View
B+
Retailer 5
-
$6,899 AUD
$4,835 USD
View
B+
Retailer 6
-
$7,386 AUD
$5,176 USD
View
B+
Retailer 7
-
$7,743 AUD
£4,273 GBP
View
B+
Retailer 8
-
$8,149 AUD
$5,711 USD
View
B+
Retailer 9
-
$8,872 AUD
£4,896 GBP
View
B+
Retailer 10
-
$12,406 AUD
£6,846 GBP
View
B
Retailer 11
-
$12,542 AUD
$8,790 USD
View
B
Retailer 12
-
$13,170 AUD
$9,230 USD
View
B
Retailer 13
-
$13,864 AUD
View
B
Retailer 14
-
$14,941 AUD
ZAR 169,163 ZAR
View
B
Retailer 15
-
$15,152 AUD
$10,619 USD
View
Retailer 16
-
$16,751 AUD
$11,740 USD
View
Price last confirmed 9 days ago
B
Retailer 17
-
$19,632 AUD
$13,758 USD
View
B
Retailer 18
-
$20,378 AUD
$14,281 USD
View
B
Retailer 19
-
$20,547 AUD
$14,400 USD
View
Most Expensive
Do Amore Diamonds
27-2967B11AF · Nov 2
$31,121 AUD
$21,810 USD
View
Price under review
19 more retailers have this diamond
Prices start from $4,147 AUDSave up to $16,401 AUD

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
$4,147 AUD