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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 $3,480 SGD
$2,722 USD
As of October 31, 2026
Save $15,585 SGD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $19,065 SGD 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 October 31, 2026, with prices from $3,480 to $19,065, a $15,585 spread on the same certified stone. With Clarity lists it at $19,065. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $6,495 SGD|Low: $3,198 SGD|High: $24,122 SGD|Avg: $9,929 SGD|-27.7%
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$3,198 SGD
Retailer 4$3,480 SGD
Retailer 2$4,366 SGD
Retailer 8$6,022 SGD
Retailer 11$6,117 SGD
Retailer 1$6,495 SGD
Retailer 5$7,399 SGD
Retailer 15$7,874 SGD
Retailer 9$8,642 SGD
Retailer 13$12,200 SGD
Retailer 10$12,363 SGD
Retailer 14$12,582 SGD
Retailer 3$12,909 SGD
Retailer 12$13,903 SGD
Retailer 7$17,085 SGD
With Clarity$19,065 SGD

26 data points across 16 retailers

16 retailers$3,480 SGD to $19,065 SGD

A
Cheapest Retailer
-
$3,480 SGD
$2,722 USD
A
Retailer 2
-
$4,366 SGD
$3,415 USD
View
B+
Retailer 3
-
$6,022 SGD
HK$36,800 HKD
View
B+
Retailer 4
-
$6,117 SGD
$4,785 USD
View
B+
Retailer 5
-
$6,495 SGD
£4,001 GBP
View
B+
Retailer 6
-
$7,399 SGD
$5,788 USD
View
B+
Retailer 7
-
$7,874 SGD
€5,866 EUR
View
B+
Retailer 8
-
$8,374 SGD
$6,550 USD
View
B
Retailer 9
-
$8,642 SGD
$6,760 USD
View
B
Retailer 10
-
$12,200 SGD
$9,543 USD
View
B
Retailer 11
-
$12,363 SGD
£7,615 GBP
View
B
Retailer 12
-
$12,582 SGD
ZAR 158,992 ZAR
View
Retailer 13
-
$12,909 SGD
$10,098 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$13,903 SGD
A$16,731 AUD
View
B
Retailer 15
-
$17,085 SGD
$13,364 USD
View
Most Expensive
B
With Clarity
780664158 · Nov 2
$19,065 SGD
$14,913 USD
View
15 more retailers have this diamond
Prices start from $3,480 SGDSave up to $15,585 SGD

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
$3,480 SGD