CaratHunter
Plans
Marquise|Lab Grown|IGI

2.56ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG771601086

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG771601086

Diamond specifications and retailer prices

From $5,821 AUD
$4,089 USD
As of November 2, 2026
Save $15,861 AUD (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $29,768 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 2.56ct lab-grown marquise diamond

This 2.56ct 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 LG771601086 or 771601086. Listed at 18 retailers as of November 1, 2026, with a 272% 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

2.56
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771601086
Dimensions13.91 × 7.32 × 4.46 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
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
13.91 mm7.32 mm2.56 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771601086
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 60.7%

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: $10,605 AUD|Low: $5,821 AUD|High: $44,544 AUD|Avg: $17,631 AUD|+0.5%
Retailer 1
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
Taylor and Hart
November 2, 2026
Retailer 7$5,821 AUD
Retailer 4$7,250 AUD
Retailer 6$7,566 AUD
Retailer 12$7,844 AUD
Retailer 17$9,592 AUD
Retailer 1$10,605 AUD
Retailer 15$10,802 AUD
Retailer 5$11,737 AUD
Retailer 2$14,128 AUD
Retailer 13$14,250 AUD
Retailer 10$16,870 AUD
Retailer 16$21,247 AUD
Retailer 11$21,387 AUD
Retailer 9$21,682 AUD
Retailer 3$27,016 AUD
Retailer 14$28,153 AUD
Taylor and Hart$29,768 AUD
Retailer 8$44,544 AUD

26 data points across 18 retailers

18 retailers$5,821 AUD to $21,682 AUD

A
Cheapest Retailer
-
$5,821 AUD
$4,089 USD
B+
Retailer 2
-
$7,250 AUD
$5,093 USD
View
Final sale: no returns
B+
Retailer 3
-
$7,566 AUD
$5,315 USD
View
B+
Retailer 4
-
$7,844 AUD
$5,510 USD
View
B+
Retailer 5
-
$9,592 AUD
$6,738 USD
View
B+
Retailer 6
-
$10,605 AUD
£5,866 GBP
View
B+
Retailer 7
-
$10,802 AUD
$7,588 USD
View
B
Retailer 8
-
$11,737 AUD
£6,492 GBP
View
B
Retailer 9
-
$14,128 AUD
$9,924 USD
View
B
Retailer 10
-
$14,250 AUD
$10,010 USD
View
B
Retailer 11
-
$16,870 AUD
£9,331 GBP
View
Retailer 12
-
$21,247 AUD
$14,925 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$21,387 AUD
ZAR 242,705 ZAR
View
B
Retailer 14
-
$21,682 AUD
$15,231 USD
View
Retailer 15
-
$27,016 AUD
$18,977 USD
View
Price under review
Retailer 16
-
$28,153 AUD
$19,776 USD
View
Price under review
Most Expensive
Taylor and Hart
JEUINXG · Oct 31
$29,768 AUD
$20,911 USD
View
Price under review
16 more retailers have this diamond
Prices start from $5,821 AUDSave up to $15,861 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
2.56ct Marquise
$5,821 AUD