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Round|Lab Grown|IGI

2.55ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG801621720

Shape and cutting style on the report: Round brilliant

Certificate IGI LG801621720

Diamond specifications and retailer prices

From $591 USD
As of November 1, 2026
Save $4,419 USD (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,010 USD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 2.55ct lab-grown round diamond

This 2.55ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG801621720 or 801621720. Listed at 22 retailers as of November 1, 2026, with prices from $591 to $5,010, a $4,419 spread on the same certified stone. Rare Carat lists it at $5,010. 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
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801621720
Dimensions8.89 × 8.86 × 5.34 mm
L/W Ratio1.00
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
8.89 mm8.86 mm2.55 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801621720
Side View
Table 57.0%Crown 32.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.1%

Caratlytics Score

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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: Nov 1
Current: $5,010 USD|Low: $591 USD|High: $5,060 USD|Avg: $1,499 USD|-1.0%
Rare Carat
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 5$591 USD
Retailer 12$654 USD
Retailer 13$654 USD
Retailer 11$898 USD
Retailer 9$900 USD
Retailer 4$915 USD
Retailer 2$1,012 USD
Retailer 7$1,453 USD
Retailer 8$1,579 USD
Retailer 10$1,689 USD
Retailer 3$2,427 USD
Retailer 6$2,732 USD
Rare Carat$5,010 USD

40 data points across 13 retailers

22 retailers$591 USD to $5,010 USD

Retailer 1
-
$507 USD
Price last confirmed 25 days ago
Retailer 2
-
$528 USD
View
Price last confirmed 41 days ago
A
Retailer 3
-
$591 USD
View
Final sale: no returns
A
Retailer 4
-
$591 USD
View
Retailer 5
-
$646 USD
View
Price last confirmed 41 days ago
Retailer 6
-
$654 USD
View
Price last confirmed 31 days ago
Retailer 7
-
$654 USD
View
Price last confirmed 17 days ago
A
Retailer 8
-
$898 USD
View
A
Retailer 9
-
$900 USD
View
A
Retailer 10
-
$915 USD
View
A
Retailer 11
-
$1,012 USD
£797 GBP
View
A
Retailer 12
-
$1,453 USD
A$2,235 AUD
View
A
Retailer 13
-
$1,579 USD
ZAR 25,516 ZAR
View
B+
Retailer 14
-
$1,689 USD
View
Retailer 15
-
$1,721 USD
View
Price last confirmed 42 days ago
Retailer 16
-
$1,721 USD
View
Price last confirmed 26 days ago
B+
Retailer 17
-
$1,828 USD
View
B+
Retailer 18
-
$2,127 USD
View
B+
Retailer 19
-
$2,240 USD
View
B+
Retailer 20
-
$2,427 USD
View
B+
Retailer 21
-
$2,732 USD
£2,151 GBP
View
Most Expensive
B
Rare Carat
VK931_l_801621720 · Nov 1
$5,010 USD
View
21 more retailers have this diamond
Prices start from $591 USDSave up to $4,419 USD

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 Round
$591 USD