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Marquise|Lab Grown|IGI

2.55ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG780664158

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780664158

Diamond specifications and retailer prices

From $6,059 NZD
$3,415 USD
As of November 1, 2026
Save $20,401 NZD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $26,460 NZD 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 LG780664158 or 780664158. Listed at 16 retailers as of November 1, 2026, with prices from $6,059 to $26,460, a $20,401 spread on the same certified stone. With Clarity lists it at $26,460. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780664158
Dimensions13.79 × 7.10 × 4.49 mm
L/W Ratio1.94
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
13.79 mm7.10 mm2.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780664158
Side View
Table 59.0%Crown 36.9°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 63.2%

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 1
Current: $6,125 NZD|Low: $4,438 NZD|High: $33,479 NZD|Avg: $13,784 NZD|+10.6%
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
With Clarity
November 2, 2026
Retailer 6$4,438 NZD
Retailer 3$6,059 NZD
Retailer 1$6,125 NZD
Retailer 9$8,358 NZD
Retailer 12$8,490 NZD
Retailer 8$9,015 NZD
Retailer 5$10,270 NZD
Retailer 2$10,928 NZD
Retailer 10$11,994 NZD
Retailer 14$16,932 NZD
Retailer 11$17,159 NZD
Retailer 15$17,462 NZD
Retailer 4$17,917 NZD
Retailer 13$19,296 NZD
Retailer 7$23,713 NZD
With Clarity$26,460 NZD

26 data points across 16 retailers

16 retailers$6,059 NZD to $26,460 NZD

A
Cheapest Retailer
-
$6,059 NZD
$3,415 USD
A
Retailer 2
-
$6,125 NZD
$3,452 USD
View
B+
Retailer 3
-
$8,358 NZD
HK$36,800 HKD
View
B+
Retailer 4
-
$8,490 NZD
$4,785 USD
View
B+
Retailer 5
-
$9,015 NZD
£4,001 GBP
View
B+
Retailer 6
-
$10,270 NZD
$5,788 USD
View
B+
Retailer 7
-
$10,928 NZD
€5,866 EUR
View
B+
Retailer 8
-
$11,622 NZD
$6,550 USD
View
B
Retailer 9
-
$11,994 NZD
$6,760 USD
View
B
Retailer 10
-
$16,932 NZD
$9,543 USD
View
B
Retailer 11
-
$17,159 NZD
£7,615 GBP
View
B
Retailer 12
-
$17,462 NZD
ZAR 158,992 ZAR
View
Retailer 13
-
$17,917 NZD
$10,098 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$19,296 NZD
A$16,731 AUD
View
B
Retailer 15
-
$23,713 NZD
$13,364 USD
View
Most Expensive
B
With Clarity
780664158 · Nov 2
$26,460 NZD
$14,913 USD
View
15 more retailers have this diamond
Prices start from $6,059 NZDSave up to $20,401 NZD

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
$6,059 NZD