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Round|Lab Grown|IGI

2.50ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG851609360

Shape and cutting style on the report: Round brilliant

Certificate IGI LG851609360

Diamond specifications and retailer prices

From $519 USD
As of October 29, 2026
Save $3,541 USD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,060 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.5ct lab-grown round diamond

This 2.5ct lab-grown round sits in the two to three carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG851609360 or 851609360. Listed at 16 retailers as of October 29, 2026, with prices from $519 to $4,060, a $3,541 spread on the same certified stone. Brilliant Earth lists it at $4,060. 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

2.50
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851609360
Dimensions8.71 × 8.77 × 5.32 mm
L/W Ratio1.01
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
8.71 mm8.77 mm2.50 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851609360
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

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: Oct 29
Current: $4,060 USD|Low: $519 USD|High: $4,060 USD|Avg: $1,363 USD
Brilliant Earth
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
Retailer 16
November 1, 2026
Retailer 6$519 USD
Retailer 13$581 USD
Retailer 9$643 USD
Retailer 5$704 USD
Retailer 10$780 USD
Retailer 16$862 USD
Retailer 14$903 USD
Retailer 7$966 USD
Retailer 2$993 USD
Retailer 4$1,041 USD
Retailer 3$1,427 USD
Retailer 12$1,659 USD
Retailer 11$1,691 USD
Retailer 8$2,036 USD
Retailer 15$2,249 USD
Brilliant Earth$4,060 USD

4 data points across 16 retailers

16 retailers$519 USD to $4,060 USD

A
Cheapest Retailer
-
$519 USD
A
Retailer 2
-
$581 USD
View
A
Retailer 3
-
$643 USD
View
A
Retailer 4
-
$704 USD
HK$5,500 HKD
View
A
Retailer 5
-
$780 USD
View
A
Retailer 6
-
$862 USD
View
A
Retailer 7
-
$903 USD
View
A
Retailer 8
-
$966 USD
€920 EUR
View
A
Retailer 9
-
$993 USD
£782 GBP
View
A
Retailer 10
-
$1,041 USD
£820 GBP
View
A
Retailer 11
-
$1,427 USD
A$2,196 AUD
View
B+
Retailer 12
-
$1,659 USD
View
B+
Retailer 13
-
$1,691 USD
View
B+
Retailer 14
-
$2,036 USD
SGD 2,751 SGD
View
B+
Retailer 15
-
$2,249 USD
View
Most Expensive
B
Brilliant Earth
22347488A · Oct 31
$4,060 USD
View
15 more retailers have this diamond
Prices start from $519 USDSave up to $3,541 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
2.50ct Round
$519 USD