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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 €465 EUR
$519 USD
As of October 29, 2026
Save €3,170 EUR (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €3,634 EUR 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 €465 to €3,634, a €3,170 spread on the same certified stone. Brilliant Earth lists it at €3,634. 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: €3,634 EUR|Low: €465 EUR|High: €3,634 EUR|Avg: €1,238 EUR
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
October 31, 2026
Retailer 6€465 EUR
Retailer 12€520 EUR
Retailer 2€576 EUR
Retailer 5€630 EUR
Retailer 9€698 EUR
Retailer 15€772 EUR
Retailer 13€808 EUR
Retailer 7€865 EUR
Retailer 4€889 EUR
Retailer 3€932 EUR
Retailer 16€1,278 EUR
Retailer 11€1,485 EUR
Retailer 10€1,514 EUR
Retailer 8€1,822 EUR
Retailer 14€2,013 EUR
Brilliant Earth€3,634 EUR

3 data points across 16 retailers

16 retailers€465 EUR to €3,634 EUR

A
Cheapest Retailer
-
€465 EUR
$519 USD
A
Retailer 2
-
€520 EUR
$581 USD
View
A
Retailer 3
-
€576 EUR
$643 USD
View
A
Retailer 4
-
€630 EUR
HK$5,500 HKD
View
A
Retailer 5
-
€698 EUR
$780 USD
View
A
Retailer 6
-
€772 EUR
$862 USD
View
A
Retailer 7
-
€808 EUR
$903 USD
View
A
Retailer 8
-
€865 EUR
View
A
Retailer 9
-
€889 EUR
£782 GBP
View
A
Retailer 10
-
€932 EUR
£820 GBP
View
A
Retailer 11
-
€1,278 EUR
A$2,196 AUD
View
B+
Retailer 12
-
€1,485 EUR
$1,659 USD
View
B+
Retailer 13
-
€1,514 EUR
$1,691 USD
View
B+
Retailer 14
-
€1,822 EUR
SGD 2,751 SGD
View
B+
Retailer 15
-
€2,013 EUR
$2,249 USD
View
Most Expensive
B
Brilliant Earth
22347488A · Oct 31
€3,634 EUR
$4,060 USD
View
15 more retailers have this diamond
Prices start from €465 EURSave up to €3,170 EUR

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
€465 EUR