CaratHunter
Plans
Marquise|Lab Grown|IGI

2.55ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG818684293

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818684293

Diamond specifications and retailer prices

From $4,914 AUD
$3,452 USD
As of November 2, 2026
Save $16,316 AUD (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $21,230 AUD at With Clarity · As of November 2, 2026
View at With Clarity

About this 2.55ct lab-grown marquise diamond

This 2.55ct 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 LG818684293 or 818684293. Listed at 12 retailers as of November 2, 2026, with prices from $4,914 to $21,230, a $16,316 spread on the same certified stone. With Clarity lists it at $21,230. 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

2.55
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818684293
Dimensions13.83 × 7.12 × 4.52 mm
L/W Ratio1.94
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
13.83 mm7.12 mm2.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818684293
Side View
Table 60.0%Crown 36.9°Girdle: MED-STKPavilion 40°Culet: NoneDepth 63.5%

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: $7,233 AUD|Low: $4,914 AUD|High: $21,230 AUD|Avg: $11,504 AUD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
November 2, 2026
Retailer 8$4,914 AUD
Retailer 11$6,706 AUD
Retailer 9$6,812 AUD
Retailer 1$7,233 AUD
Retailer 10$8,240 AUD
Retailer 6$8,734 AUD
Retailer 7$9,624 AUD
Retailer 4$13,768 AUD
Retailer 2$14,376 AUD
Retailer 5$15,482 AUD
Retailer 3$19,026 AUD
With Clarity$21,230 AUD

36 data points across 12 retailers

12 retailers$4,914 AUD to $21,230 AUD

A
Cheapest Retailer
-
$4,914 AUD
$3,452 USD
B+
Retailer 2
-
$6,706 AUD
HK$36,800 HKD
View
B+
Retailer 3
-
$6,812 AUD
$4,785 USD
View
B+
Retailer 4
-
$7,233 AUD
£4,001 GBP
View
B+
Retailer 5
-
$8,240 AUD
$5,788 USD
View
B+
Retailer 6
-
$8,734 AUD
€5,843 EUR
View
B+
Retailer 7
-
$9,624 AUD
$6,760 USD
View
B
Retailer 8
-
$13,768 AUD
£7,615 GBP
View
Retailer 9
-
$14,376 AUD
$10,098 USD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$15,482 AUD
View
B
Retailer 11
-
$19,026 AUD
$13,364 USD
View
Most Expensive
B
With Clarity
818684293 · Nov 2
$21,230 AUD
$14,913 USD
View
11 more retailers have this diamond
Prices start from $4,914 AUDSave up to $16,316 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
2.55ct Marquise
$4,914 AUD