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Marquise|Lab Grown|IGI

2.56ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG768630291

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768630291

Diamond specifications and retailer prices

From $3,889 AUD
$2,732 USD
As of October 31, 2026
Save $15,211 AUD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,100 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 LG768630291 or 768630291. Listed at 14 retailers as of October 31, 2026, with prices from $3,889 to $19,100, a $15,211 spread on the same certified stone. Taylor and Hart lists it at $19,100. 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 angle36.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630291
Dimensions13.85 × 7.08 × 4.51 mm
L/W Ratio1.96
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
13.85 mm7.08 mm2.56 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630291
Side View
Table 60.0%Crown 36.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.7%

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: Oct 31
Current: $7,261 AUD|Low: $3,889 AUD|High: $15,767 AUD|Avg: $10,069 AUD|-0.3%
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
November 2, 2026
Retailer 4$3,889 AUD
Retailer 3$4,879 AUD
Retailer 11$6,620 AUD
Retailer 1$7,261 AUD
Retailer 12$8,271 AUD
Retailer 9$8,803 AUD
Retailer 10$9,367 AUD
Retailer 2$11,520 AUD
Retailer 13$12,466 AUD
Retailer 6$13,817 AUD
Retailer 8$14,062 AUD
Retailer 5$14,432 AUD
Retailer 7$15,543 AUD

43 data points across 13 retailers

14 retailers$3,889 AUD to $19,100 AUD

A
Cheapest Retailer
-
$3,889 AUD
$2,732 USD
A
Retailer 2
-
$4,879 AUD
$3,427 USD
View
B+
Retailer 3
-
$6,620 AUD
$4,650 USD
View
B+
Retailer 4
-
$6,815 AUD
HK$37,400 HKD
View
B+
Retailer 5
-
$7,261 AUD
£4,016 GBP
View
B+
Retailer 6
-
$8,271 AUD
$5,810 USD
View
B+
Retailer 7
-
$8,803 AUD
€5,889 EUR
View
B+
Retailer 8
-
$9,367 AUD
$6,580 USD
View
B
Retailer 9
-
$12,466 AUD
$8,757 USD
View
B
Retailer 10
-
$13,817 AUD
£7,642 GBP
View
B
Retailer 11
-
$14,062 AUD
ZAR 159,574 ZAR
View
Retailer 12
-
$14,432 AUD
$10,138 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$15,543 AUD
View
Most Expensive
B
Taylor and Hart
9517ATH · Oct 31
$19,100 AUD
$13,417 USD
View
13 more retailers have this diamond
Prices start from $3,889 AUDSave up to $15,211 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
$3,889 AUD