CaratHunter
Plans
Round|Lab Grown|IGI

2.56ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG842606834

Shape and cutting style on the report: Round brilliant

Certificate IGI LG842606834

Diamond specifications and retailer prices

From €257 EUR
$287 USD
As of November 1, 2026
Save €1,020 EUR (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,329 EUR at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 2.56ct lab-grown round diamond

This 2.56ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG842606834 or 842606834. Listed at 11 retailers as of November 1, 2026, with a 397% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.56
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842606834
Dimensions8.85 × 8.91 × 5.26 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.85 mm8.91 mm2.56 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842606834
Side View
Table 61.0%Crown 32.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 59.2%

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: €1,329 EUR|Low: €244 EUR|High: €1,378 EUR|Avg: €811 EUR|-3.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9€257 EUR
Retailer 7€298 EUR
Retailer 5€523 EUR
Retailer 4€523 EUR
Retailer 11€656 EUR
Retailer 8€978 EUR
Retailer 6€980 EUR
Retailer 10€1,024 EUR
Retailer 3€1,275 EUR
Retailer 2€1,277 EUR
Rare Carat€1,329 EUR

24 data points across 11 retailers

11 retailers€257 EUR to €1,277 EUR

A
Cheapest Retailer
-
€257 EUR
$287 USD
A
Retailer 2
-
€298 EUR
$333 USD
View
A
Retailer 3
-
€523 EUR
View
A
Retailer 4
-
€523 EUR
£460 GBP
View
B+
Retailer 5
-
€656 EUR
$733 USD
View
B
Retailer 6
-
€978 EUR
$1,093 USD
View
B
Retailer 7
-
€980 EUR
$1,095 USD
View
B
Retailer 8
-
€1,024 EUR
$1,144 USD
View
Retailer 9
-
€1,275 EUR
SGD 1,925 SGD
View
Price last confirmed 21 days ago
B
Retailer 10
-
€1,277 EUR
£1,123 GBP
View
Most Expensive
Rare Carat
LGRD20-164334 · Oct 21
€1,329 EUR
$1,485 USD
View
Price last confirmed 11 days ago
10 more retailers have this diamond
Prices start from €257 EURSave up to €1,020 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
2.56ct Round
€257 EUR