CaratHunter
Plans
Cushion|Lab Grown|IGI

2.51ct F VVS1 Cushion Lab Grown Diamond

VG • F/VVS1 • IGI LG818658621

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG818658621

Diamond specifications and retailer prices

From €458 EUR
$514 USD
As of November 1, 2026
Save €2,190 EUR (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €2,648 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 2.51ct lab-grown cushion diamond

This 2.51ct lab-grown cushion sits in the two to three carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG818658621 or 818658621. Listed at 16 retailers as of November 1, 2026, with prices from €458 to €2,648, a €2,190 spread on the same certified stone. Brilliant Earth lists it at €2,648. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
F
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658621
Dimensions7.90 × 7.87 × 5.30 mm
L/W Ratio1.00
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
7.90 mm7.87 mm2.51 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658621
Side View
Table 59.0%Crown 38.3°Girdle: MED-THKPavilion 38.9°Culet: NoneDepth 67.3%

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: €2,648 EUR|Low: €458 EUR|High: €2,684 EUR|Avg: €1,307 EUR|-1.3%
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 3, 2026
Retailer 4€458 EUR
Retailer 10€481 EUR
Retailer 8€551 EUR
Retailer 13€767 EUR
Retailer 12€775 EUR
Retailer 6€796 EUR
Retailer 11€835 EUR
Retailer 16€1,099 EUR
Retailer 14€1,128 EUR
Retailer 9€1,226 EUR
Retailer 5€1,661 EUR
Retailer 15€1,803 EUR
Retailer 2€1,866 EUR
Retailer 3€1,901 EUR
Retailer 7€2,189 EUR
Brilliant Earth€2,648 EUR

33 data points across 16 retailers

16 retailers€458 EUR to €2,648 EUR

A
Cheapest Retailer
-
€458 EUR
$514 USD
Final sale: no returns
A
Retailer 2
-
€481 EUR
£424 GBP
View
Retailer 3
-
€551 EUR
$618 USD
View
Price last confirmed 23 days ago
A
Retailer 4
-
€767 EUR
$860 USD
View
A
Retailer 5
-
€775 EUR
View
A
Retailer 6
-
€796 EUR
$893 USD
View
A
Retailer 7
-
€835 EUR
£737 GBP
View
B+
Retailer 8
-
€1,099 EUR
$1,233 USD
View
B+
Retailer 9
-
€1,128 EUR
A$1,947 AUD
View
B+
Retailer 10
-
€1,226 EUR
ZAR 22,206 ZAR
View
B+
Retailer 11
-
€1,661 EUR
$1,863 USD
View
B
Retailer 12
-
€1,803 EUR
$2,022 USD
View
B
Retailer 13
-
€1,866 EUR
£1,648 GBP
View
B
Retailer 14
-
€1,901 EUR
$2,132 USD
View
B
Retailer 15
-
€2,189 EUR
$2,455 USD
View
Most Expensive
B
Brilliant Earth
21580754A · Nov 2
€2,648 EUR
$2,970 USD
View
15 more retailers have this diamond
Prices start from €458 EURSave up to €2,190 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
2.51ct Cushion
€458 EUR